Revert 143896 - Filtered events.

chrome/renderer/extensions/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_
 #pragma once
 
 class ChromeV8Extension;
 class ExtensionDispatcher;
 
-namespace extensions {
-class EventFilter;
-}
-
 namespace v8 {
 class Extension;
 }
 
 // This class deals with the javascript bindings related to Event objects.
 class EventBindings {
  public:
-  static ChromeV8Extension* Get(ExtensionDispatcher* dispatcher,
-                                extensions::EventFilter* event_filter);
+  static ChromeV8Extension* Get(ExtensionDispatcher* dispatcher);
 };
 
 #endif  // CHROME_RENDERER_EXTENSIONS_EVENT_BINDINGS_H_