Rename FrameDestructionObserver to LocalFrameLifecycleObserver.

Source/modules/screen_orientation/ScreenOrientationController.cpp

 // 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.
 
 #include "config.h"
 #include "modules/screen_orientation/ScreenOrientationController.h"
 
 #include "core/events/Event.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 17 matching lines @@
     ScreenOrientationController* controller = new ScreenOrientationController(frame, client);
     WillBeHeapSupplement<LocalFrame>::provideTo(frame, supplementName(), adoptPtrWillBeNoop(controller));
 }
 
 ScreenOrientationController* ScreenOrientationController::from(LocalFrame& frame)
 {
     return static_cast<ScreenOrientationController*>(WillBeHeapSupplement<LocalFrame>::from(frame, supplementName()));
 }
 
 ScreenOrientationController::ScreenOrientationController(LocalFrame& frame, WebScreenOrientationClient* client)
-    : FrameDestructionObserver(&frame)
+    : LocalFrameLifecycleObserver(&frame)
     , PlatformEventController(frame.page())
     , m_client(client)
     , m_dispatchEventTimer(this, &ScreenOrientationController::dispatchEventTimerFired)
 {
 }
 
 const char* ScreenOrientationController::supplementName()
 {
     return "ScreenOrientationController";
 }
@@ skipping 156 matching lines @@
 {
     if (m_orientation && page()->visibilityState() == PageVisibilityStateVisible)
         startUpdating();
     else
         stopUpdating();
 }
 
 DEFINE_TRACE(ScreenOrientationController)
 {
     visitor->trace(m_orientation);
-    FrameDestructionObserver::trace(visitor);
+    LocalFrameLifecycleObserver::trace(visitor);
     WillBeHeapSupplement<LocalFrame>::trace(visitor);
     PlatformEventController::trace(visitor);
 }
 
 } // namespace blink