Further plumb visual rect into cc:DisplayItemList.

ui/compositor/paint_recorder.h

Index: ui/compositor/paint_recorder.h
diff --git a/ui/compositor/paint_recorder.h b/ui/compositor/paint_recorder.h
index 39a687b75af38cee61c77e119be2d56be154d8f9..c5efe6f5805966892ebbbe1f7434fc40999f0026 100644
--- a/ui/compositor/paint_recorder.h
+++ b/ui/compositor/paint_recorder.h
@@ -10,6 +10,7 @@
 #include "skia/ext/refptr.h"
 #include "ui/compositor/compositor_export.h"
 #include "ui/gfx/canvas.h"
+#include "ui/gfx/geometry/rect.h"
 
 namespace cc {
 class DisplayItemList;
@@ -47,6 +48,7 @@ class COMPOSITOR_EXPORT PaintRecorder {
   const PaintContext& context_;
   gfx::Canvas canvas_;
   PaintCache* cache_;
+  gfx::Rect visual_rect_;
 
   DISALLOW_COPY_AND_ASSIGN(PaintRecorder);
 };