Remove DOMWrapperWorld::isIsolatedWorldId and DOMWrapperWorld::context

Source/bindings/v8/DOMWrapperWorld.h

Index: Source/bindings/v8/DOMWrapperWorld.h
diff --git a/Source/bindings/v8/DOMWrapperWorld.h b/Source/bindings/v8/DOMWrapperWorld.h
index 20b714e730e3eff24c0edf4b2671fda8544e84aa..9bb7927a08c7587f0194fd9ff77632ed12346858 100644
--- a/Source/bindings/v8/DOMWrapperWorld.h
+++ b/Source/bindings/v8/DOMWrapperWorld.h
@@ -64,7 +64,6 @@ public:
     ~DOMWrapperWorld();
 
     static bool isolatedWorldsExist() { return isolatedWorldCount; }
-    static bool isIsolatedWorldId(int worldId) { return worldId != MainWorldId && worldId != WorkerWorldId; }
     static void getAllWorldsInMainThread(Vector<RefPtr<DOMWrapperWorld> >& worlds);
 
     // FIXME: Replace all call sites of isolatedWorld() with world().
@@ -115,8 +114,6 @@ public:
 
     int worldId() const { return m_worldId; }
     int extensionGroup() const { return m_extensionGroup; }
-    v8::Handle<v8::Context> context(ScriptController&);
-
     DOMDataStore& domDataStore() { return *m_domDataStore; }
 
 private: