Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 22823d1c97fd631b6f12c02f76510f8b9cd18a65
      
https://github.com/WebKit/WebKit/commit/22823d1c97fd631b6f12c02f76510f8b9cd18a65
  Author: Fujii Hironori <[email protected]>
  Date:   2026-02-03 (Tue, 03 Feb 2026)

  Changed paths:
    R 
LayoutTests/platform/glib/compositing/backing/backface-visibility-expected.txt
    R 
LayoutTests/platform/glib/compositing/backing/backface-visibility-in-transformed-expected.txt
    A 
LayoutTests/platform/glib/compositing/contents-opaque/body-background-painted-expected.txt
    A 
LayoutTests/platform/glib/compositing/contents-opaque/body-background-skipped-expected.txt
    R 
LayoutTests/platform/glib/compositing/filters/backdrop-filter-root-element-no-backdrop-root-expected.txt
    R 
LayoutTests/platform/glib/compositing/layer-creation/fixed-position-no-content-expected.txt
    R 
LayoutTests/platform/glib/compositing/layer-creation/fixed-position-transformed-outside-view-expected.txt
    R 
LayoutTests/platform/glib/compositing/overflow/overflow-auto-with-touch-no-overflow-expected.txt
    R 
LayoutTests/platform/glib/compositing/overflow/overflow-hidden-with-touch-expected.txt
    R 
LayoutTests/platform/glib/compositing/overflow/overflow-overlay-with-touch-no-overflow-expected.txt
    R 
LayoutTests/platform/glib/compositing/overflow/overflow-scroll-with-touch-no-overflow-expected.txt
    R 
LayoutTests/platform/glib/compositing/overflow/overflow-visible-with-touch-expected.txt
    R 
LayoutTests/platform/glib/compositing/overflow/subpixel-overflow-expected.txt
    A LayoutTests/platform/glib/compositing/rtl/rtl-absolute-expected.txt
    A 
LayoutTests/platform/glib/compositing/rtl/rtl-absolute-overflow-expected.txt
    A 
LayoutTests/platform/glib/compositing/rtl/rtl-absolute-overflow-scrolled-expected.txt
    A LayoutTests/platform/glib/fullscreen/full-screen-layer-dump-expected.txt
    R LayoutTests/platform/wpe/fullscreen/full-screen-layer-dump-expected.txt
    M 
Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/DrawingAreaCoordinatedGraphicsGLib.cpp
    M 
Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/DrawingAreaCoordinatedGraphicsGLib.h

  Log Message:
  -----------
  [Coordinated Graphics][GTK][WPE] Implement 
DrawingAreaCoordinatedGraphics::shouldUseTiledBackingForFrameView
https://bugs.webkit.org/show_bug.cgi?id=306856

Reviewed by Carlos Garcia Campos.

Coordinated Graphics hasn't implemented WebCore::TiledBacking yet, but it's
implemented own tiled backing.

DrawingAreaCoordinatedGraphics didn't implement
shouldUseTiledBackingForFrameView method.
DrawingArea::shouldUseTiledBackingForFrameView always returns false. Thus,
RenderLayerCompositor::rootLayerConfigurationChanged() didn't work as expected
for GTK and WPE.

Implemented DrawingAreaCoordinatedGraphics::shouldUseTiledBackingForFrameView
as same as Mac. This change makes them behave same with Mac WK2.

* 
LayoutTests/platform/glib/compositing/backing/backface-visibility-expected.txt: 
Removed.
* 
LayoutTests/platform/glib/compositing/backing/backface-visibility-in-transformed-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/contents-opaque/body-background-painted-expected.txt:
 Added.
* 
LayoutTests/platform/glib/compositing/contents-opaque/body-background-skipped-expected.txt:
 Added.
* 
LayoutTests/platform/glib/compositing/layer-creation/fixed-position-no-content-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/layer-creation/fixed-position-transformed-outside-view-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/overflow/overflow-auto-with-touch-no-overflow-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/overflow/overflow-hidden-with-touch-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/overflow/overflow-overlay-with-touch-no-overflow-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/overflow/overflow-scroll-with-touch-no-overflow-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/overflow/overflow-visible-with-touch-expected.txt:
 Removed.
* 
LayoutTests/platform/glib/compositing/overflow/subpixel-overflow-expected.txt: 
Removed.
* LayoutTests/platform/glib/compositing/rtl/rtl-absolute-expected.txt: Renamed 
from 
LayoutTests/platform/glib/compositing/filters/backdrop-filter-root-element-no-backdrop-root-expected.txt.
* LayoutTests/platform/glib/compositing/rtl/rtl-absolute-overflow-expected.txt: 
Added.
* 
LayoutTests/platform/glib/compositing/rtl/rtl-absolute-overflow-scrolled-expected.txt:
 Added.
* LayoutTests/platform/glib/fullscreen/full-screen-layer-dump-expected.txt: 
Renamed from 
LayoutTests/platform/wpe/fullscreen/full-screen-layer-dump-expected.txt.
* 
Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/DrawingAreaCoordinatedGraphicsGLib.cpp:
(WebKit::DrawingAreaCoordinatedGraphics::shouldUseTiledBackingForFrameView 
const):
* 
Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/DrawingAreaCoordinatedGraphicsGLib.h:

Canonical link: https://commits.webkit.org/306711@main



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