Slimming Paint phase 2 compositing algorithm plumbing & skeleton display list API.

Source/platform/graphics/GraphicsLayer.cpp

 /*
  * Copyright (C) 2009 Apple Inc. 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1117 matching lines @@
         m_layer->layer()->setScrollClient(0);
     else
         m_layer->layer()->setScrollClient(this);
 }
 
 void GraphicsLayer::paint(GraphicsContext& context, const IntRect& clip)
 {
     paintGraphicsLayerContents(context, clip);
 }
 
+void GraphicsLayer::paint(GraphicsContext& context)
+{
+    // TODO(chrishtr: fix this rect to instead derive interest rect during paint (crbug.com/486603).
+    paintGraphicsLayerContents(context, LayoutRect::infiniteIntRect());
+}
 
 void GraphicsLayer::notifyAnimationStarted(double monotonicTime, int group)
 {
     if (m_client)
         m_client->notifyAnimationStarted(this, monotonicTime, group);
 }
 
 void GraphicsLayer::notifyAnimationFinished(double, int group)
 {
     if (m_scrollableArea)
@@ skipping 27 matching lines @@
 {
     if (!layer) {
         fprintf(stderr, "Cannot showGraphicsLayerTree for (nil).\n");
         return;
     }
 
     String output = layer->layerTreeAsText(blink::LayerTreeIncludesDebugInfo);
     fprintf(stderr, "%s\n", output.utf8().data());
 }
 #endif