Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/modules/screen_orientation/ScreenOrientationController.h

 // Copyright 2014 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 ScreenOrientationController_h
 #define ScreenOrientationController_h
 
 #include "core/frame/LocalFrameLifecycleObserver.h"
 #include "core/frame/PlatformEventController.h"
 #include "modules/ModulesExport.h"
@@ skipping 43 matching lines @@
     bool hasLastData() override;
     void pageVisibilityChanged() override;
 
     // Inherited from LocalFrameLifecycleObserver.
     void contextDestroyed() override;
 
     void notifyDispatcher();
 
     void updateOrientation();
 
-    void dispatchEventTimerFired(Timer<ScreenOrientationController>*);
+    void dispatchEventTimerFired(TimerBase*);
 
     bool isActiveAndVisible() const;
 
     Member<ScreenOrientation> m_orientation;
     WebScreenOrientationClient* m_client;
     Timer<ScreenOrientationController> m_dispatchEventTimer;
 };
 
 } // namespace blink
 
 #endif // ScreenOrientationController_h