Slimming Paint phase 2 compositing algorithm plumbing

Source/platform/graphics/GraphicsLayer.h

Index: Source/platform/graphics/GraphicsLayer.h
diff --git a/Source/platform/graphics/GraphicsLayer.h b/Source/platform/graphics/GraphicsLayer.h
index 5ad5db9706a847601c25880ddd83522a626ea1a0..10b2c83ab0b8bcededd5cf14eed88e373e972a08 100644
--- a/Source/platform/graphics/GraphicsLayer.h
+++ b/Source/platform/graphics/GraphicsLayer.h
@@ -39,6 +39,7 @@
 #include "platform/graphics/PaintInvalidationReason.h"
 #include "platform/graphics/filters/FilterOperations.h"
 #include "platform/graphics/paint/DisplayItemClient.h"
+#include "platform/graphics/paint/DisplayItemTransformTree.h"
 #include "platform/transforms/TransformationMatrix.h"
 #include "public/platform/WebCompositorAnimationDelegate.h"
 #include "public/platform/WebContentLayer.h"
@@ -248,6 +249,9 @@ public:
 
     DisplayItemList* displayItemList() override;
 
+    void setTransformTree(PassOwnPtr<const DisplayItemTransformTree> transformTree) { m_transformTree = transformTree; }

[chrishtr, 2015/08/13 21:33:16]

Revert this file.

[pdr., 2015/08/14 00:10:29]

Done

+    const DisplayItemTransformTree* transformTree() const { return m_transformTree.get(); }
+
     // Exposed for tests.
     virtual WebLayer* contentsLayer() const { return m_contentsLayer; }
 
@@ -357,6 +361,10 @@ private:
     int m_3dRenderingContext;
 
     OwnPtr<DisplayItemList> m_displayItemList;
+
+    // TODO(pdr): This is only temporarily on GraphicsLayer and will be moving
+    // to RenderSurfaceLayerList in a followup patch.
+    OwnPtr<const DisplayItemTransformTree> m_transformTree;
 };
 
 } // namespace blink