cc: Remove all blimp code from cc.

cc/playback/filter_display_item.h

Index: cc/playback/filter_display_item.h
diff --git a/cc/playback/filter_display_item.h b/cc/playback/filter_display_item.h
index 499d05bb53a4bc4634e16e1bf2d890060a3724ac..6cc77a0dccadec378344489538faeecd845007f8 100644
--- a/cc/playback/filter_display_item.h
+++ b/cc/playback/filter_display_item.h
@@ -24,10 +24,8 @@ class CC_EXPORT FilterDisplayItem : public DisplayItem {
   FilterDisplayItem(const FilterOperations& filters,
                     const gfx::RectF& bounds,
                     const gfx::PointF& origin);
-  explicit FilterDisplayItem(const proto::DisplayItem& proto);
   ~FilterDisplayItem() override;
 
-  void ToProtobuf(proto::DisplayItem* proto) const override;
   void Raster(SkCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
   void AsValueInto(const gfx::Rect& visual_rect,
@@ -53,14 +51,12 @@ class CC_EXPORT FilterDisplayItem : public DisplayItem {
 class CC_EXPORT EndFilterDisplayItem : public DisplayItem {
  public:
   EndFilterDisplayItem();
-  explicit EndFilterDisplayItem(const proto::DisplayItem& proto);
   ~EndFilterDisplayItem() override;
 
   static std::unique_ptr<EndFilterDisplayItem> Create() {
     return base::MakeUnique<EndFilterDisplayItem>();
   }
 
-  void ToProtobuf(proto::DisplayItem* proto) const override;
   void Raster(SkCanvas* canvas,
               SkPicture::AbortCallback* callback) const override;
   void AsValueInto(const gfx::Rect& visual_rect,