Chromium roll (https://codereview.chromium.org/976353002)

cc/resources/picture_pile.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_RESOURCES_PICTURE_PILE_H_
 #define CC_RESOURCES_PICTURE_PILE_H_
 
 #include <bitset>
 #include <utility>
 #include <vector>
@@ skipping 11 matching lines @@
   PicturePile(float min_contents_scale, const gfx::Size& tile_grid_size);
   ~PicturePile() override;
 
   // RecordingSource overrides.
   bool UpdateAndExpandInvalidation(ContentLayerClient* painter,
                                    Region* invalidation,
                                    const gfx::Size& layer_size,
                                    const gfx::Rect& visible_layer_rect,
                                    int frame_number,
                                    RecordingMode recording_mode) override;
+  void DidMoveToNewCompositor() override;
   scoped_refptr<RasterSource> CreateRasterSource(
       bool can_use_lcd_text) const override;
   gfx::Size GetSize() const final;
   void SetEmptyBounds() override;
   void SetSlowdownRasterScaleFactor(int factor) override;
   void SetBackgroundColor(SkColor background_color) override;
   void SetRequiresClear(bool requires_clear) override;
   bool IsSuitableForGpuRasterization() const override;
   void SetUnsuitableForGpuRasterizationForTesting() override;
   gfx::Size GetTileGridSizeForTesting() const override;
 
  protected:
   class CC_EXPORT PictureInfo {
    public:
     enum { INVALIDATION_FRAMES_TRACKED = 32 };
 
     PictureInfo();
     ~PictureInfo();
 
     bool Invalidate(int frame_number);
     bool NeedsRecording(int frame_number, int distance_to_visible);
     void SetPicture(scoped_refptr<Picture> picture);
     const Picture* GetPicture() const;
 
     float GetInvalidationFrequencyForTesting() const {
       return GetInvalidationFrequency();
     }
 
+    void ResetInvalidationHistory();
+
    private:
     void AdvanceInvalidationHistory(int frame_number);
     float GetInvalidationFrequency() const;
 
     int last_frame_number_;
     scoped_refptr<const Picture> picture_;
     std::bitset<INVALIDATION_FRAMES_TRACKED> invalidation_history_;
   };
 
   typedef std::pair<int, int> PictureMapKey;
@@ skipping 54 matching lines @@
   void SetBufferPixels(int buffer_pixels);
 
   bool is_suitable_for_gpu_rasterization_;
 
   DISALLOW_COPY_AND_ASSIGN(PicturePile);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_PICTURE_PILE_H_