Rename FrameDestructionObserver to LocalFrameLifecycleObserver.

Source/modules/presentation/PresentationController.cpp

 // 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.
 
 #include "config.h"
 #include "modules/presentation/PresentationController.h"
 
 #include "core/frame/LocalFrame.h"
 #include "modules/presentation/PresentationSession.h"
 #include "public/platform/modules/presentation/WebPresentationClient.h"
 
 namespace blink {
 
 PresentationController::PresentationController(LocalFrame& frame, WebPresentationClient* client)
-    : FrameDestructionObserver(&frame)
+    : LocalFrameLifecycleObserver(&frame)
     , m_client(client)
 {
     if (m_client)
         m_client->setController(this);
 }
 
 PresentationController::~PresentationController()
 {
     if (m_client)
         m_client->setController(nullptr);
@@ skipping 20 matching lines @@
 // static
 void PresentationController::provideTo(LocalFrame& frame, WebPresentationClient* client)
 {
     WillBeHeapSupplement<LocalFrame>::provideTo(frame, PresentationController::supplementName(), PresentationController::create(frame, client));
 }
 
 DEFINE_TRACE(PresentationController)
 {
     visitor->trace(m_presentation);
     WillBeHeapSupplement<LocalFrame>::trace(visitor);
-    FrameDestructionObserver::trace(visitor);
+    LocalFrameLifecycleObserver::trace(visitor);
 }
 
 void PresentationController::didChangeAvailability(bool available)
 {
     if (m_presentation)
         m_presentation->didChangeAvailability(available);
 }
 
 bool PresentationController::isAvailableChangeWatched() const
 {
@@ skipping 51 matching lines @@
 
 void PresentationController::willDetachFrameHost()
 {
     if (m_client) {
         m_client->setController(nullptr);
         m_client = nullptr;
     }
 }
 
 } // namespace blink