cc: Explicitly invalidate all dropped recordings on the main thread.

cc/resources/picture_layer_tiling.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_LAYER_TILING_H_
 #define CC_RESOURCES_PICTURE_LAYER_TILING_H_
 
 #include <utility>
 #include <vector>
 
@@ skipping 109 matching lines @@
   };
 
   ~PictureLayerTiling();
 
   // Create a tiling with no tiles.  CreateTiles must be called to add some.
   static scoped_ptr<PictureLayerTiling> Create(
       float contents_scale,
       const gfx::Size& layer_bounds,
       PictureLayerTilingClient* client);
   gfx::Size layer_bounds() const { return layer_bounds_; }
-  void SetLayerBounds(const gfx::Size& layer_bounds);
-  void Invalidate(const Region& layer_region);
-  void RemoveTilesInRegion(const Region& layer_region);
+  void UpdateTilesToCurrentPile(const Region& layer_invalidation,

[enne (OOO), 2014/07/11 00:12:03]

Ooh, this is a much better function than the previous four.

+                                const gfx::Size& new_layer_bounds);
   void CreateMissingTilesInLiveTilesRect();
 
   void SetClient(PictureLayerTilingClient* client);
   void set_resolution(TileResolution resolution) { resolution_ = resolution; }
   TileResolution resolution() const { return resolution_; }
 
   gfx::Rect TilingRect() const;
   gfx::Rect live_tiles_rect() const { return live_tiles_rect_; }
   gfx::Size tile_size() const { return tiling_data_.max_texture_size(); }
   float contents_scale() const { return contents_scale_; }
@@ skipping 80 matching lines @@
   // also updates the pile on each tile to be the current client's pile.
   void DidBecomeActive();
 
   // Resets the active priority for all tiles in a tiling, when an active
   // tiling is becoming recycled. This may include some tiles which are
   // not in the the pending tiling (due to invalidations). This must
   // be called before DidBecomeActive, as it resets the active priority
   // while DidBecomeActive promotes pending priority on a similar set of tiles.
   void DidBecomeRecycled();
 
-  void UpdateTilesToCurrentPile();
-
   bool NeedsUpdateForFrameAtTime(double frame_time_in_seconds) {
     return frame_time_in_seconds != last_impl_frame_time_in_seconds_;
   }
 
   scoped_ptr<base::Value> AsValue() const;
   size_t GPUMemoryUsageInBytes() const;
 
   struct RectExpansionCache {
     RectExpansionCache();
 
@@ skipping 30 matching lines @@
 
   // Computes a skewport. The calculation extrapolates the last visible
   // rect and the current visible rect to expand the skewport to where it
   // would be in |skewport_target_time| seconds. Note that the skewport
   // is guaranteed to contain the current visible rect.
   gfx::Rect ComputeSkewport(double current_frame_time_in_seconds,
                             const gfx::Rect& visible_rect_in_content_space)
       const;
 
   void UpdateEvictionCacheIfNeeded(TreePriority tree_priority);
-  void DoInvalidate(const Region& layer_region, bool recreate_tiles);
+  void Invalidate(const Region& layer_region);
 
   // Given properties.
   float contents_scale_;
   gfx::Size layer_bounds_;
   TileResolution resolution_;
   PictureLayerTilingClient* client_;
 
   // Internal data.
   TilingData tiling_data_;
   TileMap tiles_;  // It is not legal to have a NULL tile in the tiles_ map.
@@ skipping 14 matching lines @@
 
  private:
   DISALLOW_ASSIGN(PictureLayerTiling);
 
   RectExpansionCache expansion_cache_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_PICTURE_LAYER_TILING_H_