Title: [241988] trunk/Source/WebKit
Revision
241988
Author
cdu...@apple.com
Date
2019-02-22 21:30:19 -0800 (Fri, 22 Feb 2019)

Log Message

Give DrawingAreas their own identifiers
https://bugs.webkit.org/show_bug.cgi?id=194969
<rdar://problem/48154508>

Reviewed by Geoffrey Garen.

Give DrawingAreas their own identifiers instead of using the pageID. It will make the IPC more robust now that a
WebPageProxy can have several drawing areas with PSON.

* Shared/DrawingAreaInfo.h:
* Shared/WebPageCreationParameters.cpp:
(WebKit::WebPageCreationParameters::encode const):
(WebKit::WebPageCreationParameters::decode):
* Shared/WebPageCreationParameters.h:
* UIProcess/AcceleratedDrawingAreaProxy.cpp:
(WebKit::AcceleratedDrawingAreaProxy::sendUpdateBackingStoreState):
(WebKit::AcceleratedDrawingAreaProxy::waitForAndDispatchDidUpdateBackingStoreState):
(WebKit::AcceleratedDrawingAreaProxy::setNativeSurfaceHandleForCompositing):
(WebKit::AcceleratedDrawingAreaProxy::destroyNativeSurfaceHandleForCompositing):
* UIProcess/DrawingAreaProxy.cpp:
(WebKit::DrawingAreaProxy::DrawingAreaProxy):
(WebKit::DrawingAreaProxy::~DrawingAreaProxy):
(WebKit::DrawingAreaProxy::messageSenderConnection const):
(WebKit::DrawingAreaProxy::sendMessage):
(WebKit::DrawingAreaProxy::viewExposedRectChangedTimerFired):
* UIProcess/DrawingAreaProxy.h:
(WebKit::DrawingAreaProxy::identifier const):
(WebKit::DrawingAreaProxy::process const):
* UIProcess/DrawingAreaProxyImpl.cpp:
(WebKit::DrawingAreaProxyImpl::update):
* UIProcess/ProvisionalPageProxy.cpp:
(WebKit::ProvisionalPageProxy::initializeWebPage):
* UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm:
(WebKit::RemoteLayerTreeDrawingAreaProxy::RemoteLayerTreeDrawingAreaProxy):
(WebKit::RemoteLayerTreeDrawingAreaProxy::~RemoteLayerTreeDrawingAreaProxy):
(WebKit::RemoteLayerTreeDrawingAreaProxy::deviceScaleFactorDidChange):
(WebKit::RemoteLayerTreeDrawingAreaProxy::sendUpdateGeometry):
(WebKit::RemoteLayerTreeDrawingAreaProxy::acceleratedAnimationDidStart):
(WebKit::RemoteLayerTreeDrawingAreaProxy::acceleratedAnimationDidEnd):
(WebKit::RemoteLayerTreeDrawingAreaProxy::didRefreshDisplay):
(WebKit::RemoteLayerTreeDrawingAreaProxy::waitForDidUpdateActivityState):
(WebKit::RemoteLayerTreeDrawingAreaProxy::dispatchAfterEnsuringDrawing):
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::initializeWebPage):
(WebKit::WebPageProxy::createNewPage):
(WebKit::WebPageProxy::creationParameters):
* UIProcess/WebPageProxy.h:
* UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm:
(WebKit::TiledCoreAnimationDrawingAreaProxy::deviceScaleFactorDidChange):
(WebKit::TiledCoreAnimationDrawingAreaProxy::colorSpaceDidChange):
(WebKit::TiledCoreAnimationDrawingAreaProxy::waitForDidUpdateActivityState):
(WebKit::TiledCoreAnimationDrawingAreaProxy::sendUpdateGeometry):
(WebKit::TiledCoreAnimationDrawingAreaProxy::adjustTransientZoom):
(WebKit::TiledCoreAnimationDrawingAreaProxy::commitTransientZoom):
(WebKit::TiledCoreAnimationDrawingAreaProxy::dispatchAfterEnsuringDrawing):
* WebProcess/WebPage/AcceleratedDrawingArea.cpp:
(WebKit::AcceleratedDrawingArea::AcceleratedDrawingArea):
(WebKit::AcceleratedDrawingArea::layerHostDidFlushLayers):
(WebKit::AcceleratedDrawingArea::sendDidUpdateBackingStoreState):
* WebProcess/WebPage/DrawingArea.cpp:
(WebKit::DrawingArea::DrawingArea):
(WebKit::DrawingArea::removeMessageReceiverIfNeeded):
* WebProcess/WebPage/DrawingArea.h:
(WebKit::DrawingArea::identifier const):
(WebKit::DrawingArea::send):
* WebProcess/WebPage/DrawingAreaImpl.cpp:
(WebKit::DrawingAreaImpl::sendDidUpdateBackingStoreState):
(WebKit::DrawingAreaImpl::exitAcceleratedCompositingMode):
(WebKit::DrawingAreaImpl::display):
* WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm:
(WebKit::RemoteLayerTreeDrawingArea::RemoteLayerTreeDrawingArea):
(WebKit::RemoteLayerTreeDrawingArea::updateGeometry):
(WebKit::RemoteLayerTreeDrawingArea::flushLayers):
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::reinitializeWebPage):
* WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:
(WebKit::TiledCoreAnimationDrawingArea::TiledCoreAnimationDrawingArea):
(WebKit::TiledCoreAnimationDrawingArea::sendEnterAcceleratedCompositingModeIfNeeded):
(WebKit::TiledCoreAnimationDrawingArea::updateIntrinsicContentSizeIfNeeded):
(WebKit::TiledCoreAnimationDrawingArea::flushLayers):
(WebKit::TiledCoreAnimationDrawingArea::updateGeometry):
(WebKit::TiledCoreAnimationDrawingArea::setLayerHostingMode):

Modified Paths

Diff

Modified: trunk/Source/WebKit/ChangeLog (241987 => 241988)


--- trunk/Source/WebKit/ChangeLog	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/ChangeLog	2019-02-23 05:30:19 UTC (rev 241988)
@@ -1,3 +1,88 @@
+2019-02-22  Chris Dumez  <cdu...@apple.com>
+
+        Give DrawingAreas their own identifiers
+        https://bugs.webkit.org/show_bug.cgi?id=194969
+        <rdar://problem/48154508>
+
+        Reviewed by Geoffrey Garen.
+
+        Give DrawingAreas their own identifiers instead of using the pageID. It will make the IPC more robust now that a
+        WebPageProxy can have several drawing areas with PSON.
+
+        * Shared/DrawingAreaInfo.h:
+        * Shared/WebPageCreationParameters.cpp:
+        (WebKit::WebPageCreationParameters::encode const):
+        (WebKit::WebPageCreationParameters::decode):
+        * Shared/WebPageCreationParameters.h:
+        * UIProcess/AcceleratedDrawingAreaProxy.cpp:
+        (WebKit::AcceleratedDrawingAreaProxy::sendUpdateBackingStoreState):
+        (WebKit::AcceleratedDrawingAreaProxy::waitForAndDispatchDidUpdateBackingStoreState):
+        (WebKit::AcceleratedDrawingAreaProxy::setNativeSurfaceHandleForCompositing):
+        (WebKit::AcceleratedDrawingAreaProxy::destroyNativeSurfaceHandleForCompositing):
+        * UIProcess/DrawingAreaProxy.cpp:
+        (WebKit::DrawingAreaProxy::DrawingAreaProxy):
+        (WebKit::DrawingAreaProxy::~DrawingAreaProxy):
+        (WebKit::DrawingAreaProxy::messageSenderConnection const):
+        (WebKit::DrawingAreaProxy::sendMessage):
+        (WebKit::DrawingAreaProxy::viewExposedRectChangedTimerFired):
+        * UIProcess/DrawingAreaProxy.h:
+        (WebKit::DrawingAreaProxy::identifier const):
+        (WebKit::DrawingAreaProxy::process const):
+        * UIProcess/DrawingAreaProxyImpl.cpp:
+        (WebKit::DrawingAreaProxyImpl::update):
+        * UIProcess/ProvisionalPageProxy.cpp:
+        (WebKit::ProvisionalPageProxy::initializeWebPage):
+        * UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm:
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::RemoteLayerTreeDrawingAreaProxy):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::~RemoteLayerTreeDrawingAreaProxy):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::deviceScaleFactorDidChange):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::sendUpdateGeometry):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::acceleratedAnimationDidStart):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::acceleratedAnimationDidEnd):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::didRefreshDisplay):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::waitForDidUpdateActivityState):
+        (WebKit::RemoteLayerTreeDrawingAreaProxy::dispatchAfterEnsuringDrawing):
+        * UIProcess/WebPageProxy.cpp:
+        (WebKit::WebPageProxy::initializeWebPage):
+        (WebKit::WebPageProxy::createNewPage):
+        (WebKit::WebPageProxy::creationParameters):
+        * UIProcess/WebPageProxy.h:
+        * UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm:
+        (WebKit::TiledCoreAnimationDrawingAreaProxy::deviceScaleFactorDidChange):
+        (WebKit::TiledCoreAnimationDrawingAreaProxy::colorSpaceDidChange):
+        (WebKit::TiledCoreAnimationDrawingAreaProxy::waitForDidUpdateActivityState):
+        (WebKit::TiledCoreAnimationDrawingAreaProxy::sendUpdateGeometry):
+        (WebKit::TiledCoreAnimationDrawingAreaProxy::adjustTransientZoom):
+        (WebKit::TiledCoreAnimationDrawingAreaProxy::commitTransientZoom):
+        (WebKit::TiledCoreAnimationDrawingAreaProxy::dispatchAfterEnsuringDrawing):
+        * WebProcess/WebPage/AcceleratedDrawingArea.cpp:
+        (WebKit::AcceleratedDrawingArea::AcceleratedDrawingArea):
+        (WebKit::AcceleratedDrawingArea::layerHostDidFlushLayers):
+        (WebKit::AcceleratedDrawingArea::sendDidUpdateBackingStoreState):
+        * WebProcess/WebPage/DrawingArea.cpp:
+        (WebKit::DrawingArea::DrawingArea):
+        (WebKit::DrawingArea::removeMessageReceiverIfNeeded):
+        * WebProcess/WebPage/DrawingArea.h:
+        (WebKit::DrawingArea::identifier const):
+        (WebKit::DrawingArea::send):
+        * WebProcess/WebPage/DrawingAreaImpl.cpp:
+        (WebKit::DrawingAreaImpl::sendDidUpdateBackingStoreState):
+        (WebKit::DrawingAreaImpl::exitAcceleratedCompositingMode):
+        (WebKit::DrawingAreaImpl::display):
+        * WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm:
+        (WebKit::RemoteLayerTreeDrawingArea::RemoteLayerTreeDrawingArea):
+        (WebKit::RemoteLayerTreeDrawingArea::updateGeometry):
+        (WebKit::RemoteLayerTreeDrawingArea::flushLayers):
+        * WebProcess/WebPage/WebPage.cpp:
+        (WebKit::WebPage::reinitializeWebPage):
+        * WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:
+        (WebKit::TiledCoreAnimationDrawingArea::TiledCoreAnimationDrawingArea):
+        (WebKit::TiledCoreAnimationDrawingArea::sendEnterAcceleratedCompositingModeIfNeeded):
+        (WebKit::TiledCoreAnimationDrawingArea::updateIntrinsicContentSizeIfNeeded):
+        (WebKit::TiledCoreAnimationDrawingArea::flushLayers):
+        (WebKit::TiledCoreAnimationDrawingArea::updateGeometry):
+        (WebKit::TiledCoreAnimationDrawingArea::setLayerHostingMode):
+
 2019-02-22  Andy Estes  <aes...@apple.com>
 
         [Cocoa] Do not suppress deprecation warnings when calling sandbox_extension_issue_file

Modified: trunk/Source/WebKit/Shared/DrawingAreaInfo.h (241987 => 241988)


--- trunk/Source/WebKit/Shared/DrawingAreaInfo.h	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/Shared/DrawingAreaInfo.h	2019-02-23 05:30:19 UTC (rev 241988)
@@ -25,6 +25,8 @@
 
 #pragma once
 
+#include <wtf/ObjectIdentifier.h>
+
 namespace WebKit {
 
 enum DrawingAreaType {
@@ -43,4 +45,7 @@
 };
 typedef uint64_t ActivityStateChangeID;
 
+enum DrawingAreaIdentifierType { };
+using DrawingAreaIdentifier = ObjectIdentifier<DrawingAreaIdentifierType>;
+
 } // namespace WebKit

Modified: trunk/Source/WebKit/Shared/WebPageCreationParameters.cpp (241987 => 241988)


--- trunk/Source/WebKit/Shared/WebPageCreationParameters.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/Shared/WebPageCreationParameters.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -37,6 +37,7 @@
 
     encoder << store;
     encoder.encodeEnum(drawingAreaType);
+    encoder << drawingAreaIdentifier;
     encoder << pageGroupData;
     encoder << drawsBackground;
     encoder << isEditable;
@@ -138,6 +139,11 @@
         return WTF::nullopt;
     if (!decoder.decodeEnum(parameters.drawingAreaType))
         return WTF::nullopt;
+    Optional<DrawingAreaIdentifier> drawingAreaIdentifier;
+    decoder >> drawingAreaIdentifier;
+    if (!drawingAreaIdentifier)
+        return WTF::nullopt;
+    parameters.drawingAreaIdentifier = *drawingAreaIdentifier;
     Optional<WebPageGroupData> pageGroupData;
     decoder >> pageGroupData;
     if (!pageGroupData)

Modified: trunk/Source/WebKit/Shared/WebPageCreationParameters.h (241987 => 241988)


--- trunk/Source/WebKit/Shared/WebPageCreationParameters.h	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/Shared/WebPageCreationParameters.h	2019-02-23 05:30:19 UTC (rev 241988)
@@ -71,6 +71,7 @@
     
     WebPreferencesStore store;
     DrawingAreaType drawingAreaType;
+    DrawingAreaIdentifier drawingAreaIdentifier;
     WebPageGroupData pageGroupData;
 
     bool drawsBackground;

Modified: trunk/Source/WebKit/UIProcess/AcceleratedDrawingAreaProxy.cpp (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/AcceleratedDrawingAreaProxy.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/AcceleratedDrawingAreaProxy.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -183,7 +183,7 @@
 
     m_isWaitingForDidUpdateBackingStoreState = respondImmediatelyOrNot == RespondImmediately;
 
-    process().send(Messages::DrawingArea::UpdateBackingStoreState(m_nextBackingStoreStateID, respondImmediatelyOrNot == RespondImmediately, m_webPageProxy.deviceScaleFactor(), m_size, m_scrollOffset), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::UpdateBackingStoreState(m_nextBackingStoreStateID, respondImmediatelyOrNot == RespondImmediately, m_webPageProxy.deviceScaleFactor(), m_size, m_scrollOffset));
     m_scrollOffset = IntSize();
 
     if (m_isWaitingForDidUpdateBackingStoreState) {
@@ -222,7 +222,7 @@
     // choose the most recent one, or the one that is closest to our current size.
 
     // The timeout, in seconds, we use when waiting for a DidUpdateBackingStoreState message when we're asked to paint.
-    process().connection()->waitForAndDispatchImmediately<Messages::DrawingAreaProxy::DidUpdateBackingStoreState>(m_webPageProxy.pageID(), Seconds::fromMilliseconds(500));
+    process().connection()->waitForAndDispatchImmediately<Messages::DrawingAreaProxy::DidUpdateBackingStoreState>(m_identifier.toUInt64(), Seconds::fromMilliseconds(500));
 }
 
 void AcceleratedDrawingAreaProxy::enterAcceleratedCompositingMode(const LayerTreeContext& layerTreeContext)
@@ -256,7 +256,7 @@
         m_pendingNativeSurfaceHandleForCompositing = handle;
         return;
     }
-    process().send(Messages::DrawingArea::SetNativeSurfaceHandleForCompositing(handle), m_webPageProxy.pageID(), IPC::SendOption::DispatchMessageEvenWhenWaitingForSyncReply);
+    send(Messages::DrawingArea::SetNativeSurfaceHandleForCompositing(handle), IPC::SendOption::DispatchMessageEvenWhenWaitingForSyncReply);
 }
 
 void AcceleratedDrawingAreaProxy::destroyNativeSurfaceHandleForCompositing()
@@ -266,7 +266,7 @@
         return;
     }
     bool handled;
-    process().sendSync(Messages::DrawingArea::DestroyNativeSurfaceHandleForCompositing(), Messages::DrawingArea::DestroyNativeSurfaceHandleForCompositing::Reply(handled), m_webPageProxy.pageID());
+    sendSync(Messages::DrawingArea::DestroyNativeSurfaceHandleForCompositing(), Messages::DrawingArea::DestroyNativeSurfaceHandleForCompositing::Reply(handled));
 }
 #endif
 

Modified: trunk/Source/WebKit/UIProcess/DrawingAreaProxy.cpp (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/DrawingAreaProxy.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/DrawingAreaProxy.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -40,6 +40,7 @@
 
 DrawingAreaProxy::DrawingAreaProxy(DrawingAreaType type, WebPageProxy& webPageProxy, WebProcessProxy& process)
     : m_type(type)
+    , m_identifier(DrawingAreaIdentifier::generate())
     , m_webPageProxy(webPageProxy)
     , m_process(makeRef(process))
     , m_size(webPageProxy.viewSize())
@@ -47,12 +48,12 @@
     , m_viewExposedRectChangedTimer(RunLoop::main(), this, &DrawingAreaProxy::viewExposedRectChangedTimerFired)
 #endif
 {
-    process.addMessageReceiver(Messages::DrawingAreaProxy::messageReceiverName(), m_webPageProxy.pageID(), *this);
+    process.addMessageReceiver(Messages::DrawingAreaProxy::messageReceiverName(), m_identifier.toUInt64(), *this);
 }
 
 DrawingAreaProxy::~DrawingAreaProxy()
 {
-    process().removeMessageReceiver(Messages::DrawingAreaProxy::messageReceiverName(), m_webPageProxy.pageID());
+    process().removeMessageReceiver(Messages::DrawingAreaProxy::messageReceiverName(), m_identifier.toUInt64());
 }
 
 bool DrawingAreaProxy::setSize(const IntSize& size, const IntSize& scrollDelta)
@@ -73,6 +74,16 @@
 }
 #endif
 
+IPC::Connection* DrawingAreaProxy::messageSenderConnection() const
+{
+    return process().connection();
+}
+
+bool DrawingAreaProxy::sendMessage(std::unique_ptr<IPC::Encoder> encoder, OptionSet<IPC::SendOption> sendOptions)
+{
+    return process().sendMessage(WTFMove(encoder), sendOptions);
+}
+
 #if PLATFORM(MAC)
 void DrawingAreaProxy::setViewExposedRect(Optional<WebCore::FloatRect> viewExposedRect)
 {
@@ -93,7 +104,7 @@
     if (m_viewExposedRect == m_lastSentViewExposedRect)
         return;
 
-    process().send(Messages::DrawingArea::SetViewExposedRect(m_viewExposedRect), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::SetViewExposedRect(m_viewExposedRect));
     m_lastSentViewExposedRect = m_viewExposedRect;
 }
 #endif // PLATFORM(MAC)

Modified: trunk/Source/WebKit/UIProcess/DrawingAreaProxy.h (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/DrawingAreaProxy.h	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/DrawingAreaProxy.h	2019-02-23 05:30:19 UTC (rev 241988)
@@ -29,6 +29,7 @@
 #include "DrawingAreaInfo.h"
 #include "GenericCallback.h"
 #include "MessageReceiver.h"
+#include "MessageSender.h"
 #include <WebCore/FloatRect.h>
 #include <WebCore/IntRect.h>
 #include <WebCore/IntSize.h>
@@ -50,7 +51,7 @@
 class WebPageProxy;
 class WebProcessProxy;
 
-class DrawingAreaProxy : public IPC::MessageReceiver {
+class DrawingAreaProxy : public IPC::MessageReceiver, protected IPC::MessageSender {
     WTF_MAKE_NONCOPYABLE(DrawingAreaProxy);
 
 public:
@@ -57,6 +58,7 @@
     virtual ~DrawingAreaProxy();
 
     DrawingAreaType type() const { return m_type; }
+    DrawingAreaIdentifier identifier() const { return m_identifier; }
 
     virtual void deviceScaleFactorDidChange() = 0;
 
@@ -109,11 +111,13 @@
 
     WebPageProxy& page() const { return m_webPageProxy; }
     WebProcessProxy& process() { return m_process.get(); }
+    const WebProcessProxy& process() const { return m_process.get(); }
 
 protected:
     DrawingAreaProxy(DrawingAreaType, WebPageProxy&, WebProcessProxy&);
 
     DrawingAreaType m_type;
+    DrawingAreaIdentifier m_identifier;
     WebPageProxy& m_webPageProxy;
     Ref<WebProcessProxy> m_process;
 
@@ -126,6 +130,10 @@
 private:
     virtual void sizeDidChange() = 0;
 
+    IPC::Connection* messageSenderConnection() const final;
+    uint64_t messageSenderDestinationID() const final { return m_identifier.toUInt64(); }
+    bool sendMessage(std::unique_ptr<IPC::Encoder>, OptionSet<IPC::SendOption>) final;
+
     // Message handlers.
     // FIXME: These should be pure virtual.
     virtual void update(uint64_t /* backingStoreStateID */, const UpdateInfo&) { }

Modified: trunk/Source/WebKit/UIProcess/DrawingAreaProxyImpl.cpp (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/DrawingAreaProxyImpl.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/DrawingAreaProxyImpl.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -124,7 +124,7 @@
     // FIXME: Handle the case where the view is hidden.
 
     incorporateUpdate(updateInfo);
-    process().send(Messages::DrawingArea::DidUpdate(), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::DidUpdate());
 }
 
 void DrawingAreaProxyImpl::didUpdateBackingStoreState(uint64_t backingStoreStateID, const UpdateInfo& updateInfo, const LayerTreeContext& layerTreeContext)

Modified: trunk/Source/WebKit/UIProcess/ProvisionalPageProxy.cpp (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/ProvisionalPageProxy.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/ProvisionalPageProxy.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -135,7 +135,7 @@
 {
     m_drawingArea = m_page.pageClient().createDrawingAreaProxy(m_process);
 
-    auto parameters = m_page.creationParameters(m_process);
+    auto parameters = m_page.creationParameters(m_process, *m_drawingArea);
     parameters.isProcessSwap = true;
     m_process->send(Messages::WebProcess::CreateWebPage(m_page.pageID(), parameters), 0);
 

Modified: trunk/Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm	2019-02-23 05:30:19 UTC (rev 241988)
@@ -115,7 +115,7 @@
     IOSurfacePool::sharedPool().setPoolSize(0);
 #endif
 
-    process.addMessageReceiver(Messages::RemoteLayerTreeDrawingAreaProxy::messageReceiverName(), m_webPageProxy.pageID(), *this);
+    process.addMessageReceiver(Messages::RemoteLayerTreeDrawingAreaProxy::messageReceiverName(), m_identifier.toUInt64(), *this);
 
     if (m_webPageProxy.preferences().tiledScrollingIndicatorVisible())
         initializeDebugIndicator();
@@ -124,7 +124,7 @@
 RemoteLayerTreeDrawingAreaProxy::~RemoteLayerTreeDrawingAreaProxy()
 {
     m_callbacks.invalidate(CallbackBase::Error::OwnerWasInvalidated);
-    process().removeMessageReceiver(Messages::RemoteLayerTreeDrawingAreaProxy::messageReceiverName(), m_webPageProxy.pageID());
+    process().removeMessageReceiver(Messages::RemoteLayerTreeDrawingAreaProxy::messageReceiverName(), m_identifier.toUInt64());
 
 #if PLATFORM(IOS_FAMILY)
     [m_displayLinkHandler invalidate];
@@ -161,7 +161,7 @@
 
 void RemoteLayerTreeDrawingAreaProxy::deviceScaleFactorDidChange()
 {
-    process().send(Messages::DrawingArea::SetDeviceScaleFactor(m_webPageProxy.deviceScaleFactor()), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::SetDeviceScaleFactor(m_webPageProxy.deviceScaleFactor()));
 }
 
 void RemoteLayerTreeDrawingAreaProxy::didUpdateGeometry()
@@ -179,7 +179,7 @@
 void RemoteLayerTreeDrawingAreaProxy::sendUpdateGeometry()
 {
     m_lastSentSize = m_size;
-    process().send(Messages::DrawingArea::UpdateGeometry(m_size, false /* flushSynchronously */, MachSendRight()), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::UpdateGeometry(m_size, false /* flushSynchronously */, MachSendRight()));
     m_isWaitingForDidUpdateGeometry = true;
 }
 
@@ -264,12 +264,12 @@
 
 void RemoteLayerTreeDrawingAreaProxy::acceleratedAnimationDidStart(uint64_t layerID, const String& key, MonotonicTime startTime)
 {
-    process().send(Messages::DrawingArea::AcceleratedAnimationDidStart(layerID, key, startTime), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::AcceleratedAnimationDidStart(layerID, key, startTime));
 }
 
 void RemoteLayerTreeDrawingAreaProxy::acceleratedAnimationDidEnd(uint64_t layerID, const String& key)
 {
-    process().send(Messages::DrawingArea::AcceleratedAnimationDidEnd(layerID, key), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::AcceleratedAnimationDidEnd(layerID, key));
 }
 
 static const float indicatorInset = 10;
@@ -430,7 +430,7 @@
     // Waiting for CA to commit is insufficient, because the render server can still be
     // using our backing store. We can improve this by waiting for the render server to commit
     // if we find API to do so, but for now we will make extra buffers if need be.
-    process().send(Messages::DrawingArea::DidUpdate(), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::DidUpdate());
 
     m_lastVisibleTransactionID = m_transactionIDForPendingCACommit;
 
@@ -458,7 +458,7 @@
     }();
 
     auto startTime = MonotonicTime::now();
-    while (process().connection()->waitForAndDispatchImmediately<Messages::RemoteLayerTreeDrawingAreaProxy::CommitLayerTree>(m_webPageProxy.pageID(), activityStateUpdateTimeout - (MonotonicTime::now() - startTime), IPC::WaitForOption::InterruptWaitingIfSyncMessageArrives)) {
+    while (process().connection()->waitForAndDispatchImmediately<Messages::RemoteLayerTreeDrawingAreaProxy::CommitLayerTree>(m_identifier.toUInt64(), activityStateUpdateTimeout - (MonotonicTime::now() - startTime), IPC::WaitForOption::InterruptWaitingIfSyncMessageArrives)) {
         if (activityStateChangeID == ActivityStateChangeAsynchronous || activityStateChangeID <= m_activityStateChangeID)
             return;
     }
@@ -471,7 +471,7 @@
         return;
     }
 
-    process().send(Messages::DrawingArea::AddTransactionCallbackID(m_callbacks.put(WTFMove(callbackFunction), process().throttler().backgroundActivityToken())), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::AddTransactionCallbackID(m_callbacks.put(WTFMove(callbackFunction), process().throttler().backgroundActivityToken())));
 }
 
 void RemoteLayerTreeDrawingAreaProxy::hideContentUntilPendingUpdate()

Modified: trunk/Source/WebKit/UIProcess/WebPageProxy.cpp (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/WebPageProxy.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/WebPageProxy.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -944,7 +944,7 @@
     setDrawingArea(pageClient().createDrawingAreaProxy(m_process));
     ASSERT(m_drawingArea);
 
-    process().send(Messages::WebProcess::CreateWebPage(m_pageID, creationParameters(m_process)), 0);
+    process().send(Messages::WebProcess::CreateWebPage(m_pageID, creationParameters(m_process, *m_drawingArea)), 0);
 
     m_needsToFinishInitializingWebPageAfterProcessLaunch = true;
     finishInitializingWebPageAfterProcessLaunch();
@@ -4878,7 +4878,7 @@
 
         newPage->setOpenedByDOM();
 
-        reply(newPage->pageID(), newPage->creationParameters(m_process));
+        reply(newPage->pageID(), newPage->creationParameters(m_process, *newPage->drawingArea()));
 
         WebsiteDataStore::cloneSessionData(*this, *newPage);
         newPage->m_shouldSuppressAppLinksInNextNavigationPolicyDecision = hostsAreEqual(URL({ }, mainFrameURL), request.url());
@@ -6857,13 +6857,14 @@
     m_process->processTerminated();
 }
 
-WebPageCreationParameters WebPageProxy::creationParameters(WebProcessProxy& process)
+WebPageCreationParameters WebPageProxy::creationParameters(WebProcessProxy& process, DrawingAreaProxy& drawingArea)
 {
     WebPageCreationParameters parameters;
 
     parameters.viewSize = pageClient().viewSize();
     parameters.activityState = m_activityState;
-    parameters.drawingAreaType = m_drawingArea->type();
+    parameters.drawingAreaType = drawingArea.type();
+    parameters.drawingAreaIdentifier = drawingArea.identifier();
     parameters.store = preferencesStore();
     parameters.pageGroupData = m_pageGroup->data();
     parameters.drawsBackground = m_drawsBackground;

Modified: trunk/Source/WebKit/UIProcess/WebPageProxy.h (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/WebPageProxy.h	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/WebPageProxy.h	2019-02-23 05:30:19 UTC (rev 241988)
@@ -1079,7 +1079,7 @@
     void didChooseFilesForOpenPanel(const Vector<String>&);
     void didCancelForOpenPanel();
 
-    WebPageCreationParameters creationParameters(WebProcessProxy&);
+    WebPageCreationParameters creationParameters(WebProcessProxy&, DrawingAreaProxy&);
 
     void handleDownloadRequest(DownloadProxy*);
 

Modified: trunk/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm (241987 => 241988)


--- trunk/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm	2019-02-23 05:30:19 UTC (rev 241988)
@@ -55,7 +55,7 @@
 
 void TiledCoreAnimationDrawingAreaProxy::deviceScaleFactorDidChange()
 {
-    process().send(Messages::DrawingArea::SetDeviceScaleFactor(m_webPageProxy.deviceScaleFactor()), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::SetDeviceScaleFactor(m_webPageProxy.deviceScaleFactor()));
 }
 
 void TiledCoreAnimationDrawingAreaProxy::sizeDidChange()
@@ -73,7 +73,7 @@
 
 void TiledCoreAnimationDrawingAreaProxy::colorSpaceDidChange()
 {
-    process().send(Messages::DrawingArea::SetColorSpace(m_webPageProxy.colorSpace()), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::SetColorSpace(m_webPageProxy.colorSpace()));
 }
 
 void TiledCoreAnimationDrawingAreaProxy::viewLayoutSizeDidChange()
@@ -122,7 +122,7 @@
 void TiledCoreAnimationDrawingAreaProxy::waitForDidUpdateActivityState(ActivityStateChangeID)
 {
     Seconds activityStateUpdateTimeout = Seconds::fromMilliseconds(250);
-    process().connection()->waitForAndDispatchImmediately<Messages::WebPageProxy::DidUpdateActivityState>(m_webPageProxy.pageID(), activityStateUpdateTimeout, IPC::WaitForOption::InterruptWaitingIfSyncMessageArrives);
+    process().connection()->waitForAndDispatchImmediately<Messages::WebPageProxy::DidUpdateActivityState>(m_identifier.toUInt64(), activityStateUpdateTimeout, IPC::WaitForOption::InterruptWaitingIfSyncMessageArrives);
 }
 
 void TiledCoreAnimationDrawingAreaProxy::intrinsicContentSizeDidChange(const IntSize& newIntrinsicContentSize)
@@ -182,17 +182,17 @@
     ASSERT(!m_isWaitingForDidUpdateGeometry);
 
     willSendUpdateGeometry();
-    process().send(Messages::DrawingArea::UpdateGeometry(m_size, true /* flushSynchronously */, createFence()), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::UpdateGeometry(m_size, true /* flushSynchronously */, createFence()));
 }
 
 void TiledCoreAnimationDrawingAreaProxy::adjustTransientZoom(double scale, FloatPoint origin)
 {
-    process().send(Messages::DrawingArea::AdjustTransientZoom(scale, origin), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::AdjustTransientZoom(scale, origin));
 }
 
 void TiledCoreAnimationDrawingAreaProxy::commitTransientZoom(double scale, FloatPoint origin)
 {
-    process().send(Messages::DrawingArea::CommitTransientZoom(scale, origin), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::CommitTransientZoom(scale, origin));
 }
 
 void TiledCoreAnimationDrawingAreaProxy::dispatchAfterEnsuringDrawing(WTF::Function<void (CallbackBase::Error)>&& callback)
@@ -202,7 +202,7 @@
         return;
     }
 
-    process().send(Messages::DrawingArea::AddTransactionCallbackID(m_callbacks.put(WTFMove(callback), nullptr)), m_webPageProxy.pageID());
+    send(Messages::DrawingArea::AddTransactionCallbackID(m_callbacks.put(WTFMove(callback), nullptr)));
 }
 
 void TiledCoreAnimationDrawingAreaProxy::dispatchPresentationCallbacksAfterFlushingLayers(const Vector<CallbackID>& callbackIDs)

Modified: trunk/Source/WebKit/WebProcess/WebPage/AcceleratedDrawingArea.cpp (241987 => 241988)


--- trunk/Source/WebKit/WebProcess/WebPage/AcceleratedDrawingArea.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/WebProcess/WebPage/AcceleratedDrawingArea.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -53,7 +53,7 @@
 }
 
 AcceleratedDrawingArea::AcceleratedDrawingArea(WebPage& webPage, const WebPageCreationParameters& parameters)
-    : DrawingArea(DrawingAreaTypeImpl, webPage)
+    : DrawingArea(DrawingAreaTypeImpl, parameters.drawingAreaIdentifier, webPage)
     , m_exitCompositingTimer(RunLoop::main(), this, &AcceleratedDrawingArea::exitAcceleratedCompositingMode)
     , m_discardPreviousLayerTreeHostTimer(RunLoop::main(), this, &AcceleratedDrawingArea::discardPreviousLayerTreeHost)
 {
@@ -183,7 +183,7 @@
 
     ASSERT(!m_compositingAccordingToProxyMessages);
     if (!exitAcceleratedCompositingModePending()) {
-        m_webPage.send(Messages::DrawingAreaProxy::EnterAcceleratedCompositingMode(m_backingStoreStateID, m_layerTreeHost->layerTreeContext()));
+        send(Messages::DrawingAreaProxy::EnterAcceleratedCompositingMode(m_backingStoreStateID, m_layerTreeHost->layerTreeContext()));
         m_compositingAccordingToProxyMessages = true;
     }
 }
@@ -307,7 +307,7 @@
         m_layerTreeHost->forceRepaint();
     }
 
-    m_webPage.send(Messages::DrawingAreaProxy::DidUpdateBackingStoreState(m_backingStoreStateID, updateInfo, layerTreeContext));
+    send(Messages::DrawingAreaProxy::DidUpdateBackingStoreState(m_backingStoreStateID, updateInfo, layerTreeContext));
     m_compositingAccordingToProxyMessages = !layerTreeContext.isEmpty();
 }
 

Modified: trunk/Source/WebKit/WebProcess/WebPage/DrawingArea.cpp (241987 => 241988)


--- trunk/Source/WebKit/WebProcess/WebPage/DrawingArea.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/WebProcess/WebPage/DrawingArea.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -69,11 +69,12 @@
     return nullptr;
 }
 
-DrawingArea::DrawingArea(DrawingAreaType type, WebPage& webPage)
+DrawingArea::DrawingArea(DrawingAreaType type, DrawingAreaIdentifier identifier, WebPage& webPage)
     : m_type(type)
+    , m_identifier(identifier)
     , m_webPage(webPage)
 {
-    WebProcess::singleton().addMessageReceiver(Messages::DrawingArea::messageReceiverName(), m_webPage.pageID(), *this);
+    WebProcess::singleton().addMessageReceiver(Messages::DrawingArea::messageReceiverName(), m_identifier.toUInt64(), *this);
 }
 
 DrawingArea::~DrawingArea()
@@ -99,7 +100,7 @@
     if (m_hasRemovedMessageReceiver)
         return;
     m_hasRemovedMessageReceiver = true;
-    WebProcess::singleton().removeMessageReceiver(Messages::DrawingArea::messageReceiverName(), m_webPage.pageID());
+    WebProcess::singleton().removeMessageReceiver(Messages::DrawingArea::messageReceiverName(), m_identifier.toUInt64());
 }
 
 } // namespace WebKit

Modified: trunk/Source/WebKit/WebProcess/WebPage/DrawingArea.h (241987 => 241988)


--- trunk/Source/WebKit/WebProcess/WebPage/DrawingArea.h	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/WebProcess/WebPage/DrawingArea.h	2019-02-23 05:30:19 UTC (rev 241988)
@@ -29,6 +29,7 @@
 #include "DrawingAreaInfo.h"
 #include "LayerTreeContext.h"
 #include "MessageReceiver.h"
+#include "WebPage.h"
 #include <WebCore/ActivityState.h>
 #include <WebCore/FloatRect.h>
 #include <WebCore/IntRect.h>
@@ -61,7 +62,6 @@
 
 struct ColorSpaceData;
 class LayerTreeHost;
-class WebPage;
 struct WebPageCreationParameters;
 struct WebPreferencesStore;
 
@@ -74,6 +74,7 @@
     virtual ~DrawingArea();
     
     DrawingAreaType type() const { return m_type; }
+    DrawingAreaIdentifier identifier() const { return m_identifier; }
 
     virtual void setNeedsDisplay() = 0;
     virtual void setNeedsDisplayInRect(const WebCore::IntRect&) = 0;
@@ -155,9 +156,15 @@
     void removeMessageReceiverIfNeeded();
 
 protected:
-    DrawingArea(DrawingAreaType, WebPage&);
+    DrawingArea(DrawingAreaType, DrawingAreaIdentifier, WebPage&);
 
+    template<typename U> bool send(const U& message)
+    {
+        return m_webPage.send(message, m_identifier.toUInt64(), { });
+    }
+
     DrawingAreaType m_type;
+    DrawingAreaIdentifier m_identifier;
     WebPage& m_webPage;
 
 #if USE(TEXTURE_MAPPER_GL) && PLATFORM(GTK) && PLATFORM(X11) && !USE(REDIRECTED_XCOMPOSITE_WINDOW)

Modified: trunk/Source/WebKit/WebProcess/WebPage/DrawingAreaImpl.cpp (241987 => 241988)


--- trunk/Source/WebKit/WebProcess/WebPage/DrawingAreaImpl.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/WebProcess/WebPage/DrawingAreaImpl.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -242,7 +242,7 @@
             m_shouldSendDidUpdateBackingStoreState = false;
 
             LayerTreeContext layerTreeContext;
-            m_webPage.send(Messages::DrawingAreaProxy::DidUpdateBackingStoreState(m_backingStoreStateID, updateInfo, layerTreeContext));
+            send(Messages::DrawingAreaProxy::DidUpdateBackingStoreState(m_backingStoreStateID, updateInfo, layerTreeContext));
             m_compositingAccordingToProxyMessages = false;
             return;
         }
@@ -308,12 +308,12 @@
     // Send along a complete update of the page so we can paint the contents right after we exit the
     // accelerated compositing mode, eliminiating flicker.
     if (m_compositingAccordingToProxyMessages) {
-        m_webPage.send(Messages::DrawingAreaProxy::ExitAcceleratedCompositingMode(m_backingStoreStateID, updateInfo));
+        send(Messages::DrawingAreaProxy::ExitAcceleratedCompositingMode(m_backingStoreStateID, updateInfo));
         m_compositingAccordingToProxyMessages = false;
     } else {
         // If we left accelerated compositing mode before we sent an EnterAcceleratedCompositingMode message to the
         // UI process, we still need to let it know about the new contents, so send an Update message.
-        m_webPage.send(Messages::DrawingAreaProxy::Update(m_backingStoreStateID, updateInfo));
+        send(Messages::DrawingAreaProxy::Update(m_backingStoreStateID, updateInfo));
     }
 }
 
@@ -367,7 +367,7 @@
         return;
     }
 
-    m_webPage.send(Messages::DrawingAreaProxy::Update(m_backingStoreStateID, updateInfo));
+    send(Messages::DrawingAreaProxy::Update(m_backingStoreStateID, updateInfo));
     m_isWaitingForDidUpdate = true;
 }
 

Modified: trunk/Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm (241987 => 241988)


--- trunk/Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm	2019-02-23 05:30:19 UTC (rev 241988)
@@ -36,6 +36,7 @@
 #import "RemoteScrollingCoordinator.h"
 #import "RemoteScrollingCoordinatorTransaction.h"
 #import "WebPage.h"
+#import "WebPageCreationParameters.h"
 #import "WebPageProxyMessages.h"
 #import "WebProcess.h"
 #import <QuartzCore/QuartzCore.h>
@@ -54,8 +55,8 @@
 namespace WebKit {
 using namespace WebCore;
 
-RemoteLayerTreeDrawingArea::RemoteLayerTreeDrawingArea(WebPage& webPage, const WebPageCreationParameters&)
-    : DrawingArea(DrawingAreaTypeRemoteLayerTree, webPage)
+RemoteLayerTreeDrawingArea::RemoteLayerTreeDrawingArea(WebPage& webPage, const WebPageCreationParameters& parameters)
+    : DrawingArea(DrawingAreaTypeRemoteLayerTree, parameters.drawingAreaIdentifier, webPage)
     , m_remoteLayerTreeContext(std::make_unique<RemoteLayerTreeContext>(webPage))
     , m_rootLayer(GraphicsLayer::create(graphicsLayerFactory(), *this))
     , m_layerFlushTimer(*this, &RemoteLayerTreeDrawingArea::flushLayers)
@@ -146,7 +147,7 @@
 
     scheduleCompositingLayerFlush();
 
-    m_webPage.send(Messages::DrawingAreaProxy::DidUpdateGeometry());
+    send(Messages::DrawingAreaProxy::DidUpdateGeometry());
 }
 
 bool RemoteLayerTreeDrawingArea::shouldUseTiledBackingForFrameView(const FrameView& frameView)
@@ -399,10 +400,10 @@
     m_nextFlushIsForImmediatePaint = false;
     m_waitingForBackingStoreSwap = true;
 
-    m_webPage.send(Messages::RemoteLayerTreeDrawingAreaProxy::WillCommitLayerTree(layerTransaction.transactionID()));
+    send(Messages::RemoteLayerTreeDrawingAreaProxy::WillCommitLayerTree(layerTransaction.transactionID()));
 
     Messages::RemoteLayerTreeDrawingAreaProxy::CommitLayerTree message(layerTransaction, scrollingTransaction);
-    auto commitEncoder = std::make_unique<IPC::Encoder>(Messages::RemoteLayerTreeDrawingAreaProxy::CommitLayerTree::receiverName(), Messages::RemoteLayerTreeDrawingAreaProxy::CommitLayerTree::name(), m_webPage.pageID());
+    auto commitEncoder = std::make_unique<IPC::Encoder>(Messages::RemoteLayerTreeDrawingAreaProxy::CommitLayerTree::receiverName(), Messages::RemoteLayerTreeDrawingAreaProxy::CommitLayerTree::name(), m_identifier.toUInt64());
     commitEncoder->encode(message.arguments());
 
     // FIXME: Move all backing store flushing management to RemoteLayerBackingStoreCollection.

Modified: trunk/Source/WebKit/WebProcess/WebPage/WebPage.cpp (241987 => 241988)


--- trunk/Source/WebKit/WebProcess/WebPage/WebPage.cpp	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/WebProcess/WebPage/WebPage.cpp	2019-02-23 05:30:19 UTC (rev 241988)
@@ -709,6 +709,7 @@
 
         unfreezeLayerTree(LayerTreeFreezeReason::PageSuspended);
     }
+    RELEASE_ASSERT(m_drawingArea->identifier() == parameters.drawingAreaIdentifier);
 
     setViewLayoutSize(parameters.viewLayoutSize);
 

Modified: trunk/Source/WebKit/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm (241987 => 241988)


--- trunk/Source/WebKit/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm	2019-02-23 05:14:34 UTC (rev 241987)
+++ trunk/Source/WebKit/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm	2019-02-23 05:30:19 UTC (rev 241988)
@@ -74,7 +74,7 @@
 using namespace WebCore;
 
 TiledCoreAnimationDrawingArea::TiledCoreAnimationDrawingArea(WebPage& webPage, const WebPageCreationParameters& parameters)
-    : DrawingArea(DrawingAreaTypeTiledCoreAnimation, webPage)
+    : DrawingArea(DrawingAreaTypeTiledCoreAnimation, parameters.drawingAreaIdentifier, webPage)
     , m_layerTreeStateIsFrozen(false)
     , m_isPaintingSuspended(!(parameters.activityState & ActivityState::IsVisible))
     , m_transientZoomScale(1)
@@ -118,7 +118,7 @@
             return;
         LayerTreeContext layerTreeContext;
         layerTreeContext.contextID = m_layerHostingContext->contextID();
-        m_webPage.send(Messages::DrawingAreaProxy::EnterAcceleratedCompositingMode(0, layerTreeContext));
+        send(Messages::DrawingAreaProxy::EnterAcceleratedCompositingMode(0, layerTreeContext));
     });
 }
 
@@ -298,7 +298,7 @@
         return;
 
     m_lastSentIntrinsicContentSize = contentSize;
-    m_webPage.send(Messages::DrawingAreaProxy::IntrinsicContentSizeDidChange(contentSize));
+    send(Messages::DrawingAreaProxy::IntrinsicContentSizeDidChange(contentSize));
 }
 
 void TiledCoreAnimationDrawingArea::setShouldScaleViewToFitDocument(bool shouldScaleView)
@@ -504,7 +504,7 @@
             applyTransientZoomToLayers(m_transientZoomScale, m_transientZoomOrigin);
 
         if (!m_pendingCallbackIDs.isEmpty()) {
-            m_webPage.send(Messages::DrawingAreaProxy::DispatchPresentationCallbacksAfterFlushingLayers(m_pendingCallbackIDs));
+            send(Messages::DrawingAreaProxy::DispatchPresentationCallbacksAfterFlushingLayers(m_pendingCallbackIDs));
             m_pendingCallbackIDs.clear();
         }
 
@@ -630,7 +630,7 @@
     if (flushSynchronously)
         [CATransaction flush];
 
-    m_webPage.send(Messages::DrawingAreaProxy::DidUpdateGeometry());
+    send(Messages::DrawingAreaProxy::DidUpdateGeometry());
 
     m_inUpdateGeometry = false;
 
@@ -649,7 +649,7 @@
     // Finally, inform the UIProcess that the context has changed.
     LayerTreeContext layerTreeContext;
     layerTreeContext.contextID = m_layerHostingContext->contextID();
-    m_webPage.send(Messages::DrawingAreaProxy::UpdateAcceleratedCompositingMode(0, layerTreeContext));
+    send(Messages::DrawingAreaProxy::UpdateAcceleratedCompositingMode(0, layerTreeContext));
 }
 
 void TiledCoreAnimationDrawingArea::setColorSpace(const ColorSpaceData& colorSpace)
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