cc: Throttle swaps in Scheduler instead of OutputSurface

cc/scheduler/time_source.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_TIME_SOURCE_H_
 #define CC_SCHEDULER_TIME_SOURCE_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "cc/base/cc_export.h"
 
 namespace cc {
 
-class TimeSourceClient {
+class CC_EXPORT TimeSourceClient {
  public:
   virtual void OnTimerTick() = 0;
 
  protected:
   virtual ~TimeSourceClient() {}
 };
 
 // An generic interface for getting a reliably-ticking timesource of
 // a specified rate.
 //
@@ skipping 17 matching lines @@
  protected:
   virtual ~TimeSource() {}
 
  private:
   friend class base::RefCounted<TimeSource>;
 };
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_TIME_SOURCE_H_