Move EventBindings to //extensions

extensions/renderer/event_bindings.h

 // Copyright (c) 2012 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.
 
-#ifndef CHROME_RENDERER_EXTENSIONS_EVENT_BINDINGS_H_
-#define CHROME_RENDERER_EXTENSIONS_EVENT_BINDINGS_H_
+#ifndef EXTENSIONS_RENDERER_EVENT_BINDINGS_H_
+#define EXTENSIONS_RENDERER_EVENT_BINDINGS_H_
 
 #include "v8/include/v8.h"
 
 namespace extensions {
-class ChromeV8Context;
-class ChromeV8Extension;
 class Dispatcher;
-class EventFilter;
+class ObjectBackedNativeHandler;
+class ScriptContext;
 
 // This class deals with the javascript bindings related to Event objects.
 class EventBindings {
  public:
-  static ChromeV8Extension* Create(Dispatcher* dispatcher,
-                                   ChromeV8Context* context);
+  static ObjectBackedNativeHandler* Create(Dispatcher* dispatcher,
+                                           ScriptContext* context);
 };
 
 }  // namespace extensions
 
-#endif  // CHROME_RENDERER_EXTENSIONS_EVENT_BINDINGS_H_
+#endif  // EXTENSIONS_RENDERER_EVENT_BINDINGS_H_