cc: Send notification of tasks completion directly without scheduling.

cc/tiles/tile_manager.h

Index: cc/tiles/tile_manager.h
diff --git a/cc/tiles/tile_manager.h b/cc/tiles/tile_manager.h
index b522423415fd50d29a53ec3c5adb95b15f2a11b6..0b6530f28c5463a8698bdb47390c93928f082a3b 100644
--- a/cc/tiles/tile_manager.h
+++ b/cc/tiles/tile_manager.h
@@ -16,7 +16,6 @@
 
 #include "base/macros.h"
 #include "base/values.h"
-#include "cc/base/unique_notifier.h"
 #include "cc/playback/raster_source.h"
 #include "cc/raster/raster_buffer_provider.h"
 #include "cc/resources/memory_history.h"
@@ -268,19 +267,23 @@ class CC_EXPORT TileManager {
   bool TilePriorityViolatesMemoryPolicy(const TilePriority& priority);
   bool AreRequiredTilesReadyToDraw(RasterTilePriorityQueue::Type type) const;
   void CheckIfMoreTilesNeedToBePrepared();
-  void CheckAndIssueSignals();
+  void CheckAndNotifyReadyToActivate();
+  void CheckAndNotifyReadyToDraw();
+  void CheckAndNotifyAllTileTasksCompleted();
   bool MarkTilesOutOfMemory(
       std::unique_ptr<RasterTilePriorityQueue> queue) const;
 
   ResourceFormat DetermineResourceFormat(const Tile* tile) const;
   bool DetermineResourceRequiresSwizzle(const Tile* tile) const;
 
-  void DidFinishRunningTileTasksRequiredForActivation();
-  void DidFinishRunningTileTasksRequiredForDraw();
-  void DidFinishRunningAllTileTasks();
+  void DidFinishRunningTileTasksRequiredForActivation(
+      uint64_t source_prepare_tiles_id);
+  void DidFinishRunningTileTasksRequiredForDraw(
+      uint64_t source_prepare_tiles_id);
+  void DidFinishRunningAllTileTasks(uint64_t source_prepare_tiles_id);
 
   scoped_refptr<TileTask> CreateTaskSetFinishedTask(
-      void (TileManager::*callback)());
+      void (TileManager::*callback)(uint64_t source_prepare_tiles_id));
 
   std::unique_ptr<base::trace_event::ConvertableToTraceFormat>
   ScheduledTasksStateAsValue() const;
@@ -316,8 +319,6 @@ class CC_EXPORT TileManager {
   scoped_refptr<TileTask> required_for_draw_done_task_;
   scoped_refptr<TileTask> all_done_task_;
 
-  UniqueNotifier more_tiles_need_prepare_check_notifier_;
-
   struct Signals {
     Signals();
 
@@ -331,8 +332,6 @@ class CC_EXPORT TileManager {
     bool did_notify_all_tile_tasks_completed;
   } signals_;

[prashant.n, 2016/05/30 14:38:27]

1. From above structure
ready_to_activate, ready_to_draw and all_tile_tasks_completed

and has_scheduled_tile_tasks_

2. 


are purely needed for tracing.

Do let me know if want to keep this or remove.

 
-  UniqueNotifier signals_check_notifier_;
-
   bool has_scheduled_tile_tasks_;
 
   uint64_t prepare_tiles_count_;