cc: Add BeginFrameArgs

cc/scheduler/frame_rate_controller.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_SCHEDULER_FRAME_RATE_CONTROLLER_H_
 #define CC_SCHEDULER_FRAME_RATE_CONTROLLER_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time.h"
 #include "cc/base/cc_export.h"
+#include "cc/output/begin_frame_args.h"
 
 namespace base { class SingleThreadTaskRunner; }
 
 namespace cc {
 
 class TimeSource;
 class FrameRateController;
 
 class CC_EXPORT FrameRateControllerClient {
  protected:
   virtual ~FrameRateControllerClient() {}
 
  public:
   // Throttled is true when we have a maximum number of frames pending.
-  virtual void FrameRateControllerTick(bool throttled) = 0;
+  virtual void FrameRateControllerTick(bool throttled,
+                                       const BeginFrameArgs& args) = 0;
 };
 
 class FrameRateControllerTimeSourceAdapter;
 
 // The FrameRateController is used in cases where we self-tick (i.e. BeginFrame
 // is not sent by a parent compositor.
 class CC_EXPORT FrameRateController {
  public:
-  enum {
-    DEFAULT_MAX_FRAMES_PENDING = 2
-  };
-
   explicit FrameRateController(scoped_refptr<TimeSource> timer);
   // Alternate form of FrameRateController with unthrottled frame-rate.
   explicit FrameRateController(base::SingleThreadTaskRunner* task_runner);
   virtual ~FrameRateController();
 
   void SetClient(FrameRateControllerClient* client) { client_ = client; }
 
   void SetActive(bool active);
   bool IsActive() { return active_; }
 
@@ skipping 11 matching lines @@
   int NumSwapsPendingForTesting() const { return num_frames_pending_; }
 
   // This returns null for unthrottled frame-rate.
   base::TimeTicks NextTickTime();
 
   // This returns now for unthrottled frame-rate.
   base::TimeTicks LastTickTime();
 
   void SetTimebaseAndInterval(base::TimeTicks timebase,
                               base::TimeDelta interval);
+  void SetDeadlineAdjustment(base::TimeDelta delta);
 
  protected:
   friend class FrameRateControllerTimeSourceAdapter;
   void OnTimerTick();
 
   void PostManualTick();
   void ManualTick();
 
   FrameRateControllerClient* client_;
   int num_frames_pending_;
   int max_swaps_pending_;
+  base::TimeDelta interval_;
+  base::TimeDelta deadline_adjustment_;
   scoped_refptr<TimeSource> time_source_;
   scoped_ptr<FrameRateControllerTimeSourceAdapter> time_source_client_adapter_;
   bool active_;
 
   // Members for unthrottled frame-rate.
   bool is_time_source_throttling_;
   base::WeakPtrFactory<FrameRateController> weak_factory_;
   base::SingleThreadTaskRunner* task_runner_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FrameRateController);
 };
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_FRAME_RATE_CONTROLLER_H_