Repaint on interest rect change

third_party/WebKit/Source/platform/graphics/GraphicsLayer.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 227 matching lines @@
 
     void setScrollableArea(ScrollableArea*, bool isViewport);
     ScrollableArea* scrollableArea() const { return m_scrollableArea; }
 
     WebContentLayer* contentLayer() const { return m_layer.get(); }
 
     static void registerContentsLayer(WebLayer*);
     static void unregisterContentsLayer(WebLayer*);
 
     // GraphicsContextPainter implementation.
-    void paint(GraphicsContext&, const IntRect& clip) override;
-    void paintIfNeeded(GraphicsContext&) override;
+    void paint(GraphicsContext&, const IntRect* clip) override;

[chrishtr, 2015/10/29 19:56:51]

How about:

paint()

paintForTesting(IntRect cullRect)

?

[Xianzhu, 2015/10/29 20:00:46]

We still need the parameter when it is called from ContentPageDelegate,
especially for the non-synchronized-painting path.

We can do this when we remove the non-sychronized-painting path.

 
     // WebCompositorAnimationDelegate implementation.
     void notifyAnimationStarted(double monotonicTime, int group) override;
     void notifyAnimationFinished(double monotonicTime, int group) override;
 
     // WebLayerScrollClient implementation.
     void didScroll() override;
 
     PaintController* paintController() override;
 
@@ skipping 116 matching lines @@
 };
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the blink namespace for ease of invocation from gdb.
 void PLATFORM_EXPORT showGraphicsLayerTree(const blink::GraphicsLayer*);
 #endif
 
 #endif // GraphicsLayer_h