Raster display item lists via a visual rect RTree.

third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp

Index: third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
index b7081ff953795a0c4ec008188a3cfd20d7cfc6c5..a21cfe300993bd05528360a8654b5f198762fc1f 100644
--- a/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
+++ b/third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.cpp
@@ -94,8 +94,7 @@ static void appendDisplayItemToCcDisplayItemList(const DisplayItem& displayItem,
 static scoped_refptr<cc::DisplayItemList> recordPaintChunk(const PaintArtifact& artifact, const PaintChunk& chunk, const gfx::Rect& combinedBounds)
 {
     cc::DisplayItemListSettings settings;
-    scoped_refptr<cc::DisplayItemList> list = cc::DisplayItemList::Create(
-        gfx::Rect(combinedBounds.size()), settings);
+    scoped_refptr<cc::DisplayItemList> list = cc::DisplayItemList::Create(settings);
 
     gfx::Transform translation;
     translation.Translate(-combinedBounds.x(), -combinedBounds.y());