cc: Remove AsValue virtual from DisplayItem.

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 c7bbcce7d28fb2b5e25671b63f00930b7a0887cb..8f87c8cf5a3fb7b87b4f12aab337deba20bb75bc 100644
--- a/cc/playback/clip_path_display_item.cc
+++ b/cc/playback/clip_path_display_item.cc
@@ -34,14 +34,6 @@ void ClipPathDisplayItem::Raster(SkCanvas* canvas,
   canvas->clipPath(clip_path_, antialias_);
 }
 
-void ClipPathDisplayItem::AsValueInto(
-    const gfx::Rect& visual_rect,
-    base::trace_event::TracedValue* array) const {
-  array->AppendString(base::StringPrintf(
-      "ClipPathDisplayItem length: %d visualRect: [%s]",
-      clip_path_.countPoints(), visual_rect.ToString().c_str()));
-}
-
 EndClipPathDisplayItem::EndClipPathDisplayItem() : DisplayItem(END_CLIP_PATH) {}
 
 EndClipPathDisplayItem::~EndClipPathDisplayItem() {
@@ -53,12 +45,4 @@ void EndClipPathDisplayItem::Raster(
   canvas->restore();
 }
 
-void EndClipPathDisplayItem::AsValueInto(
-    const gfx::Rect& visual_rect,
-    base::trace_event::TracedValue* array) const {
-  array->AppendString(
-      base::StringPrintf("EndClipPathDisplayItem visualRect: [%s]",
-                         visual_rect.ToString().c_str()));
-}
-
 }  // namespace cc