cc: Clean up RecordingSource API

cc/playback/recording_source.h

Index: cc/playback/recording_source.h
diff --git a/cc/playback/recording_source.h b/cc/playback/recording_source.h
index 36d0511d358ab2662128f4768900e722e9170d83..f8e7a2fd14a59ac316901b37bf6fa9f5e271ac47 100644
--- a/cc/playback/recording_source.h
+++ b/cc/playback/recording_source.h
@@ -48,14 +48,14 @@ class CC_EXPORT RecordingSource {
 
   void ToProtobuf(proto::RecordingSource* proto) const;
   void FromProtobuf(const proto::RecordingSource& proto,
-                    ClientPictureCache* client_picture_cache,
-                    std::vector<uint32_t>* used_engine_picture_ids);
+                    const scoped_refptr<DisplayItemList>& display_list);
 
   bool UpdateAndExpandInvalidation(ContentLayerClient* painter,
                                    Region* invalidation,
                                    const gfx::Size& layer_size,
-                                   int frame_number,
-                                   RecordingMode recording_mode);
+                                   const gfx::Rect& new_recorded_viewport);
+  void UpdateDisplayItemList(const scoped_refptr<DisplayItemList>& display_list,
+                             const size_t& painter_reported_memory_usage);
   gfx::Size GetSize() const;
   void SetEmptyBounds();
   void SetSlowdownRasterScaleFactor(int factor);
@@ -68,15 +68,10 @@ class CC_EXPORT RecordingSource {
   // These functions are virtual for testing.
   virtual scoped_refptr<RasterSource> CreateRasterSource(
       bool can_use_lcd_text) const;
-  virtual bool IsSuitableForGpuRasterization() const;
-
-  gfx::Rect recorded_viewport() const { return recorded_viewport_; }
 
   const DisplayItemList* GetDisplayItemList();
 
  protected:
-  void Clear();
-
   gfx::Rect recorded_viewport_;
   gfx::Size size_;
   int slow_down_raster_scale_factor_for_debug_;
@@ -86,7 +81,6 @@ class CC_EXPORT RecordingSource {
   bool clear_canvas_with_debug_color_;
   SkColor solid_color_;
   SkColor background_color_;
-
   scoped_refptr<DisplayItemList> display_list_;
   size_t painter_reported_memory_usage_;
 
@@ -94,6 +88,7 @@ class CC_EXPORT RecordingSource {
   void UpdateInvalidationForNewViewport(const gfx::Rect& old_recorded_viewport,
                                         const gfx::Rect& new_recorded_viewport,
                                         Region* invalidation);
+
   void FinishDisplayItemListUpdate();
 
   friend class RasterSource;