not for commit/review (thread cost tracker)

cc/resources/tile_manager.h

Index: cc/resources/tile_manager.h
diff --git a/cc/resources/tile_manager.h b/cc/resources/tile_manager.h
index a5005bf7f3cce2da6d11082e5567633af2468a1a..476292285abe8b690a37f37a9d0a6181e153144d 100644
--- a/cc/resources/tile_manager.h
+++ b/cc/resources/tile_manager.h
@@ -16,6 +16,7 @@
 #include "base/values.h"
 #include "cc/base/ref_counted_managed.h"
 #include "cc/base/unique_notifier.h"
+#include "cc/debug/worker_thread_cost_tracker.h"
 #include "cc/resources/eviction_tile_priority_queue.h"
 #include "cc/resources/managed_tile_state.h"
 #include "cc/resources/memory_history.h"
@@ -101,7 +102,8 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
       base::SequencedTaskRunner* task_runner,
       ResourcePool* resource_pool,
       TileTaskRunner* tile_task_runner,
-      size_t scheduled_raster_task_limit);
+      size_t scheduled_raster_task_limit,
+      WorkerThreadCostTracker* worker_thread_cost_tracker);
   ~TileManager() override;
 
   // Assigns tile memory and schedules work to prepare tiles for drawing.
@@ -174,7 +176,8 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
               const scoped_refptr<base::SequencedTaskRunner>& task_runner,
               ResourcePool* resource_pool,
               TileTaskRunner* tile_task_runner,
-              size_t scheduled_raster_task_limit);
+              size_t scheduled_raster_task_limit,
+              WorkerThreadCostTracker* worker_thread_cost_tracker);
 
   void FreeResourcesForReleasedTiles();
   void CleanUpReleasedTiles();
@@ -217,13 +220,17 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
     int resource_count_;
   };
 
-  void OnImageDecodeTaskCompleted(int layer_id,
-                                  SkPixelRef* pixel_ref,
-                                  bool was_canceled);
-  void OnRasterTaskCompleted(Tile::Id tile,
-                             scoped_ptr<ScopedResource> resource,
-                             const RasterSource::SolidColorAnalysis& analysis,
-                             bool was_canceled);
+  void OnImageDecodeTaskCompleted(
+      int layer_id,
+      SkPixelRef* pixel_ref,
+      bool was_canceled,
+      scoped_ptr<WorkerThreadCostTracker::Probe> cost_tracker_probe);
+  void OnRasterTaskCompleted(
+      Tile::Id tile,
+      scoped_ptr<ScopedResource> resource,
+      const RasterSource::SolidColorAnalysis& analysis,
+      bool was_canceled,
+      scoped_ptr<WorkerThreadCostTracker::Probe> cost_tracker_probe);
 
   void FreeResourcesForTile(Tile* tile);
   void FreeResourcesForTileAndNotifyClientIfTileWasReadyToDraw(Tile* tile);
@@ -289,6 +296,8 @@ class CC_EXPORT TileManager : public TileTaskRunnerClient,
   bool did_notify_ready_to_activate_;
   bool did_notify_ready_to_draw_;
 
+  WorkerThreadCostTracker* worker_thread_cost_tracker_;
+
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };