cc: Remove all blimp code from cc.

cc/playback/transform_display_item.h

Index: cc/playback/transform_display_item.h
diff --git a/cc/playback/transform_display_item.h b/cc/playback/transform_display_item.h
index 728fe9df70a20d97fe5d4d0a5cf676d9c24f5038..75ef6da852ad20ab57a460bee5367d29d9f979f7 100644
--- a/cc/playback/transform_display_item.h
+++ b/cc/playback/transform_display_item.h
@@ -21,10 +21,8 @@ namespace cc {
 class CC_EXPORT TransformDisplayItem : public DisplayItem {
  public:
   explicit TransformDisplayItem(const gfx::Transform& transform);
-  explicit TransformDisplayItem(const proto::DisplayItem& proto);
   ~TransformDisplayItem() override;
 
-  void ToProtobuf(proto::DisplayItem* proto) const override;
   void Raster(SkCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
   void AsValueInto(const gfx::Rect& visual_rect,
@@ -42,14 +40,12 @@ class CC_EXPORT TransformDisplayItem : public DisplayItem {
 class CC_EXPORT EndTransformDisplayItem : public DisplayItem {
  public:
   EndTransformDisplayItem();
-  explicit EndTransformDisplayItem(const proto::DisplayItem& proto);
   ~EndTransformDisplayItem() override;
 
   static std::unique_ptr<EndTransformDisplayItem> Create() {
     return base::MakeUnique<EndTransformDisplayItem>();
   }
 
-  void ToProtobuf(proto::DisplayItem* proto) const override;
   void Raster(SkCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
   void AsValueInto(const gfx::Rect& visual_rect,