cc: Cull DrawingDisplayItems outside of the raster playback rect

cc/playback/clip_path_display_item.cc

Index: cc/playback/clip_path_display_item.cc
diff --git a/cc/playback/clip_path_display_item.cc b/cc/playback/clip_path_display_item.cc
index e33166b655211d4b4acec780bd840a2ae2498251..417b575701c8df892d1d3ce50bc92cbc7fb446cc 100644
--- a/cc/playback/clip_path_display_item.cc
+++ b/cc/playback/clip_path_display_item.cc
@@ -29,6 +29,7 @@ void ClipPathDisplayItem::SetNew(const SkPath& clip_path,
 }
 
 void ClipPathDisplayItem::Raster(SkCanvas* canvas,
+                                 const gfx::Rect& canvas_target_playback_rect,
                                  SkPicture::AbortCallback* callback) const {
   canvas->save();
   canvas->clipPath(clip_path_, clip_op_, antialias_);
@@ -48,8 +49,10 @@ EndClipPathDisplayItem::EndClipPathDisplayItem() {
 EndClipPathDisplayItem::~EndClipPathDisplayItem() {
 }
 
-void EndClipPathDisplayItem::Raster(SkCanvas* canvas,
-                                    SkPicture::AbortCallback* callback) const {
+void EndClipPathDisplayItem::Raster(
+    SkCanvas* canvas,
+    const gfx::Rect& canvas_target_playback_rect,
+    SkPicture::AbortCallback* callback) const {
   canvas->restore();
 }