Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/core/html/AutoplayExperimentHelper.h

 // Copyright 2015 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 AutoplayExperimentHelper_h
 #define AutoplayExperimentHelper_h
 
 #include "core/page/PageVisibilityState.h"
 #include "platform/Timer.h"
 #include "platform/geometry/IntRect.h"
@@ skipping 248 matching lines @@
     // Record that an attempt to play without a user gesture has happened.
     // This does not assume whether or not the play attempt will succeed.
     // This method takes no action after it is called once.
     void autoplayMediaEncountered();
 
     // If we are about to enter a paused state, call this to record
     // autoplay metrics.
     void recordMetricsBeforePause();
 
     // Process a timer for checking visibility.
-    void viewportTimerFired(Timer<AutoplayExperimentHelper>*);
+    void viewportTimerFired(TimerBase*);
 
     Client& client() const { return *m_client; }
 
     bool isLockedPendingUserGesture() const;
 
     inline bool enabled(Mode mode) const
     {
         return static_cast<int>(m_mode) & static_cast<int>(mode);
     }
 
@@ skipping 57 matching lines @@
 inline AutoplayExperimentHelper::Mode& operator|=(AutoplayExperimentHelper::Mode& a,
     const AutoplayExperimentHelper::Mode& b)
 {
     a = static_cast<AutoplayExperimentHelper::Mode>(static_cast<int>(a) | static_cast<int>(b));
     return a;
 }
 
 } // namespace blink
 
 #endif // AutoplayExperimentHelper_h