cc: Remove AsValue virtual from DisplayItem.

cc/playback/float_clip_display_item.h

Index: cc/playback/float_clip_display_item.h
diff --git a/cc/playback/float_clip_display_item.h b/cc/playback/float_clip_display_item.h
index 6233d3cebce044145c296b7b0f336aaea3539be7..1f68cef36e10b5c76f48a6f30caf3aa7c094b24d 100644
--- a/cc/playback/float_clip_display_item.h
+++ b/cc/playback/float_clip_display_item.h
@@ -26,12 +26,12 @@ class CC_EXPORT FloatClipDisplayItem : public DisplayItem {
 
   void Raster(SkCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
-  void AsValueInto(const gfx::Rect& visual_rect,
-                   base::trace_event::TracedValue* array) const override;
 
   size_t ExternalMemoryUsage() const { return 0; }
   int ApproximateOpCount() const { return 1; }
 
+  const gfx::RectF& clip_rect() const { return clip_rect_; }
+
  private:
   void SetNew(const gfx::RectF& clip_rect);
 
@@ -49,8 +49,6 @@ class CC_EXPORT EndFloatClipDisplayItem : public DisplayItem {
 
   void Raster(SkCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
-  void AsValueInto(const gfx::Rect& visual_rect,
-                   base::trace_event::TracedValue* array) const override;
 
   int ApproximateOpCount() const { return 0; }
 };