A host of micro-optimizations and a refactor of TimeForBoundsToIntersect

cc/tile_manager.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_TILE_MANAGER_H_
 #define CC_TILE_MANAGER_H_
 
 #include <list>
 #include <queue>
 #include <vector>
@@ skipping 99 matching lines @@
                       size_t* memoryUsedBytes) const;
   void GetRenderingStats(RenderingStats* stats);
   bool HasPendingWorkScheduled(WhichTree tree) const;
 
  protected:
   // Methods called by Tile
   friend class Tile;
   void RegisterTile(Tile* tile);
   void UnregisterTile(Tile* tile);
   void WillModifyTilePriority(
-      Tile* tile, WhichTree tree, const TilePriority& new_priority);
+      Tile* tile, WhichTree tree, const TilePriority& new_priority) {
+    // TODO(nduca): Do something smarter if reprioritization turns out to be
+    // costly.
+    ScheduleManageTiles();
+  }
 
  private:
   void SortTiles();
   void AssignGpuMemoryToTiles();
   void FreeResourcesForTile(Tile* tile);
-  void ScheduleManageTiles();
+  void ScheduleManageTiles() {
+    if (manage_tiles_pending_)
+      return;
+    client_->ScheduleManageTiles();
+    manage_tiles_pending_ = true;
+  }
   void DispatchMoreTasks();
   void GatherPixelRefsForTile(Tile* tile);
   void DispatchImageDecodeTasksForTile(Tile* tile);
   void DispatchOneImageDecodeTask(
       scoped_refptr<Tile> tile, skia::LazyPixelRef* pixel_ref);
   void OnImageDecodeTaskCompleted(
       scoped_refptr<Tile> tile, uint32_t pixel_ref_id);
   bool CanDispatchRasterTask(Tile* tile);
   void DispatchOneRasterTask(scoped_refptr<Tile> tile);
   void OnRasterTaskCompleted(
@@ skipping 43 matching lines @@
   RenderingStats rendering_stats_;
 
   int raster_state_count_[NUM_STATES][NUM_TREES][NUM_BINS];
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_TILE_MANAGER_H_