Extract simpler classes for observing context lifecycle and observe Page lifecycle inNavigatorVibra…

Source/core/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 27 matching lines @@
 #include "core/page/Chrome.h"
 #include "core/page/ContextMenuController.h"
 #include "core/page/DOMTimer.h"
 #include "core/page/DragController.h"
 #include "core/page/FocusController.h"
 #include "core/page/Frame.h"
 #include "core/page/FrameTree.h"
 #include "core/page/FrameView.h"
 #include "core/page/PageConsole.h"
 #include "core/page/PageGroup.h"
+#include "core/page/PageLifecycleNotifier.h"
 #include "core/page/PointerLockController.h"
 #include "core/page/Settings.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/platform/network/NetworkStateNotifier.h"
 #include "core/plugins/PluginData.h"
 #include "core/rendering/RenderArena.h"
 #include "core/rendering/RenderTheme.h"
 #include "core/rendering/RenderView.h"
 #include "core/storage/StorageNamespace.h"
 #include "wtf/HashMap.h"
@@ skipping 571 matching lines @@
     ASSERT(m_subframeCount + 1 == subframeCount);
 }
 #endif
 
 void Page::setVisibilityState(PageVisibilityState visibilityState, bool isInitialState)
 {
     if (m_visibilityState == visibilityState)
         return;
     m_visibilityState = visibilityState;
 
+    if (!isInitialState)
+        lifecycleNotifier()->notifyPageVisibilityChanged();
+
     if (!isInitialState && m_mainFrame)
         m_mainFrame->dispatchVisibilityStateChangeEvent();
 
     if (visibilityState == WebCore::PageVisibilityStateHidden)
         setTimerAlignmentInterval(DOMTimer::hiddenPageAlignmentInterval());
     else
         setTimerAlignmentInterval(DOMTimer::visiblePageAlignmentInterval());
 }
 
 PageVisibilityState Page::visibilityState() const
@@ skipping 175 matching lines @@
     m_multisamplingChangedObservers.remove(observer);
 }
 
 void Page::multisamplingChanged()
 {
     HashSet<MultisamplingChangedObserver*>::iterator stop = m_multisamplingChangedObservers.end();
     for (HashSet<MultisamplingChangedObserver*>::iterator it = m_multisamplingChangedObservers.begin(); it != stop; ++it)
         (*it)->multisamplingChanged(m_settings->openGLMultisamplingEnabled());
 }
 
+PageLifecycleNotifier* Page::lifecycleNotifier()
+{
+    return static_cast<PageLifecycleNotifier*>(LifecycleContext::lifecycleNotifier());
+}
+
+PassOwnPtr<LifecycleNotifier> Page::createLifecycleNotifier()
+{
+    return PageLifecycleNotifier::create(this);
+}
+
 Page::PageClients::PageClients()
     : chromeClient(0)
     , contextMenuClient(0)
     , editorClient(0)
     , dragClient(0)
     , inspectorClient(0)
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 } // namespace WebCore