[9] Review request for 8065627 Animated GIFs fail to display on a HiDPI display

[Alexander Scherbatiy]

Hello,
Could you review the fix:
  bug: https://bugs.openjdk.java.net/browse/JDK-8065627
  webrev: http://cr.openjdk.java.net/~alexsch/8065627/webrev.00

  MultiResolutionToolkitImage cache returns the same resolution-variant 
observer for
  the given media toolkit and component observers. The base observer 
should be used as
  a key for the MultiResolutionToolkitImage observers cache instead of 
image.

Thanks,
Alexandr.