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

Source/core/dom/ScriptExecutionContext.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2012 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 14 matching lines @@
  *
  */
 
 #ifndef ScriptExecutionContext_h
 #define ScriptExecutionContext_h
 
 #include "core/dom/ActiveDOMObject.h"
 #include "core/dom/SecurityContext.h"
 #include "core/page/ConsoleTypes.h"
 #include "core/page/DOMTimer.h"
+#include "core/platform/LifecycleContext.h"
 #include "core/platform/Supplementable.h"
 #include "weborigin/KURL.h"
 #include "wtf/HashSet.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace WebCore {
 
 class CachedScript;
 class ContextLifecycleNotifier;
 class DatabaseContext;
 class EventListener;
 class EventQueue;
 class EventTarget;
 class MessagePort;
 class PublicURLManager;
 class ScriptCallStack;
 class ScriptState;
 
-class ScriptExecutionContext : public SecurityContext, public Supplementable<ScriptExecutionContext> {
+class ScriptExecutionContext : public LifecycleContext, public SecurityContext, public Supplementable<ScriptExecutionContext> {
 public:
     ScriptExecutionContext();
     virtual ~ScriptExecutionContext();
 
     virtual bool isDocument() const { return false; }
     virtual bool isWorkerGlobalScope() const { return false; }
 
-    virtual bool isContextThread() const { return true; }
     virtual bool isJSExecutionForbidden() const = 0;
 
     const KURL& url() const { return virtualURL(); }
     KURL completeURL(const String& url) const { return virtualCompleteURL(url); }
 
     virtual String userAgent(const KURL&) const = 0;
 
     virtual void disableEval(const String& errorMessage) = 0;
 
     bool sanitizeScriptError(String& errorMessage, int& lineNumber, String& sourceURL, CachedScript* = 0);
@@ skipping 15 matching lines @@
     virtual void suspendActiveDOMObjects(ActiveDOMObject::ReasonForSuspension);
     virtual void resumeActiveDOMObjects();
     virtual void stopActiveDOMObjects();
 
     bool activeDOMObjectsAreSuspended() const { return m_activeDOMObjectsAreSuspended; }
     bool activeDOMObjectsAreStopped() const { return m_activeDOMObjectsAreStopped; }
 
     // Called after the construction of an ActiveDOMObject to synchronize suspend state.
     void suspendActiveDOMObjectIfNeeded(ActiveDOMObject*);
 
-    // Called from the constructor and destructors of ContextLifecycleObserver
-    void wasObservedBy(ContextLifecycleObserver*, ContextLifecycleObserver::Type as);
-    void wasUnobservedBy(ContextLifecycleObserver*, ContextLifecycleObserver::Type as);
-
     // MessagePort is conceptually a kind of ActiveDOMObject, but it needs to be tracked separately for message dispatch.
     void processMessagePortMessagesSoon();
     void dispatchMessagePortEvents();
     void createdMessagePort(MessagePort*);
     void destroyedMessagePort(MessagePort*);
     const HashSet<MessagePort*>& messagePorts() const { return m_messagePorts; }
 
     void ref() { refScriptExecutionContext(); }
     void deref() { derefScriptExecutionContext(); }
 
@@ skipping 50 matching lines @@
 
     virtual void addMessage(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, PassRefPtr<ScriptCallStack>, ScriptState* = 0, unsigned long requestIdentifier = 0) = 0;
     virtual EventTarget* errorEventTarget() = 0;
     virtual void logExceptionToConsole(const String& errorMessage, const String& sourceURL, int lineNumber, PassRefPtr<ScriptCallStack>) = 0;
     bool dispatchErrorEvent(const String& errorMessage, int lineNumber, const String& sourceURL, CachedScript*);
 
     void closeMessagePorts();
 
     virtual void refScriptExecutionContext() = 0;
     virtual void derefScriptExecutionContext() = 0;
-    virtual PassOwnPtr<ContextLifecycleNotifier> createLifecycleNotifier();
+    virtual PassOwnPtr<LifecycleNotifier> createLifecycleNotifier() OVERRIDE;
 
     // Implementation details for DOMTimer. No other classes should call these functions.
     int installNewTimeout(PassOwnPtr<ScheduledAction>, int timeout, bool singleShot);
     void removeTimeoutByID(int timeoutID); // This makes underlying DOMTimer instance destructed.
 
     HashSet<MessagePort*> m_messagePorts;
 
     int m_circularSequentialID;
     typedef HashMap<int, OwnPtr<DOMTimer> > TimeoutMap;
     TimeoutMap m_timeouts;
@@ skipping 12 matching lines @@
 
     // The location of this member is important; to make sure contextDestroyed() notification on
     // ScriptExecutionContext's members (notably m_timeouts) is called before they are destructed,
     // m_lifecycleNotifer should be placed *after* such members.
     OwnPtr<ContextLifecycleNotifier> m_lifecycleNotifier;
 };
 
 } // namespace WebCore
 
 #endif // ScriptExecutionContext_h