Rename FrameDestructionObserver to LocalFrameLifecycleObserver.

Source/modules/permissions/PermissionController.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/permissions/PermissionController.h"
 
 #include "core/frame/LocalFrame.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "public/platform/modules/permissions/WebPermissionClient.h"
@@ skipping 11 matching lines @@
     PermissionController* controller = new PermissionController(frame, client);
     WillBeHeapSupplement<LocalFrame>::provideTo(frame, supplementName(), adoptPtrWillBeNoop(controller));
 }
 
 PermissionController* PermissionController::from(LocalFrame& frame)
 {
     return static_cast<PermissionController*>(WillBeHeapSupplement<LocalFrame>::from(frame, supplementName()));
 }
 
 PermissionController::PermissionController(LocalFrame& frame, WebPermissionClient* client)
-    : FrameDestructionObserver(&frame)
+    : LocalFrameLifecycleObserver(&frame)
     , m_client(client)
 {
 }
 
 const char* PermissionController::supplementName()
 {
     return "PermissionController";
 }
 
 WebPermissionClient* PermissionController::client() const
 {
     return m_client;
 }
 
 void PermissionController::willDetachFrameHost()
 {
     m_client = nullptr;
 }
 
 DEFINE_TRACE(PermissionController)
 {
-    FrameDestructionObserver::trace(visitor);
+    LocalFrameLifecycleObserver::trace(visitor);
     WillBeHeapSupplement<LocalFrame>::trace(visitor);
 }
 
 } // namespace blink