cc: Use delayed unique notifier for renewing tree priority.

cc/trees/thread_proxy.h

 // Copyright 2011 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_TREES_THREAD_PROXY_H_
 #define CC_TREES_THREAD_PROXY_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "cc/animation/animation_events.h"
 #include "cc/base/completion_event.h"
+#include "cc/base/delayed_unique_notifier.h"
 #include "cc/resources/resource_update_controller.h"
 #include "cc/scheduler/scheduler.h"
 #include "cc/trees/layer_tree_host_impl.h"
 #include "cc/trees/proxy.h"
 #include "cc/trees/proxy_timing_history.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
@@ skipping 102 matching lines @@
     bool input_throttled_until_commit;
 
     // Set when we freeze animations to avoid checkerboarding.
     bool animations_frozen_until_next_draw;
     base::TimeTicks animation_time;
 
     // Whether a commit has been completed since the last time animations were
     // ticked. If this happens, we need to animate again.
     bool did_commit_after_animating;
 
-    base::TimeTicks smoothness_takes_priority_expiration_time;
-    bool renew_tree_priority_pending;
+    DelayedUniqueNotifier smoothness_priority_expiration_notifier;
 
     ProxyTimingHistory timing_history;
 
     scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl;
     base::WeakPtrFactory<ThreadProxy> weak_factory;
   };
 
   const MainThreadOnly& main() const;
   const MainThreadOrBlockedMainThread& blocked_main() const;
   const CompositorThreadOnly& impl() const;
@@ skipping 119 matching lines @@
       RendererCapabilities* capabilities);
   void FinishGLOnImplThread(CompletionEvent* completion);
   void LayerTreeHostClosedOnImplThread(CompletionEvent* completion);
   DrawResult DrawSwapInternal(bool forced_draw);
   void ForceSerializeOnSwapBuffersOnImplThread(CompletionEvent* completion);
   void CheckOutputSurfaceStatusOnImplThread();
   void CommitPendingOnImplThreadForTesting(CommitPendingRequest* request);
   void SchedulerAsValueOnImplThreadForTesting(SchedulerStateRequest* request);
   void AsValueOnImplThread(CompletionEvent* completion,
                            base::DictionaryValue* state) const;
-  void RenewTreePriorityOnImplThread();
   void SetSwapUsedIncompleteTileOnImplThread(bool used_incomplete_tile);
   void MainThreadHasStoppedFlingingOnImplThread();
   void SetInputThrottledUntilCommitOnImplThread(bool is_throttled);
   void SetDebugStateOnImplThread(const LayerTreeDebugState& debug_state);
 
   LayerTreeHost* layer_tree_host();
   const LayerTreeHost* layer_tree_host() const;
 
   // Use accessors instead of this variable directly.
   MainThreadOnly main_thread_only_vars_unsafe_;
   MainThreadOnly& main();
 
   // Use accessors instead of this variable directly.
   MainThreadOrBlockedMainThread main_thread_or_blocked_vars_unsafe_;
   MainThreadOrBlockedMainThread& blocked_main();
 
   // Use accessors instead of this variable directly.
   CompositorThreadOnly compositor_thread_vars_unsafe_;
   CompositorThreadOnly& impl();
 
   base::WeakPtr<ThreadProxy> main_thread_weak_ptr_;
   base::WeakPtr<ThreadProxy> impl_thread_weak_ptr_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadProxy);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_THREAD_PROXY_H_