extensions: Add ExtensionView interface.

chrome/browser/extensions/extension_host_mac.mm

 // 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.
 
 #include "chrome/browser/extensions/extension_host_mac.h"
 
+#include "chrome/browser/extensions/extension_view.h"
 #import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
 #import "chrome/browser/ui/cocoa/extensions/extension_popup_controller.h"
 #import "chrome/browser/ui/cocoa/info_bubble_window.h"
 #include "chrome/common/view_type.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 
 using content::NativeWebKeyboardEvent;
 
 namespace extensions {
 
@@ skipping 10 matching lines @@
 
 void ExtensionHostMac::UnhandledKeyboardEvent(
     content::WebContents* source,
     const NativeWebKeyboardEvent& event) {
   if (event.skip_in_browser || event.type == NativeWebKeyboardEvent::Char ||
       extension_host_type() != chrome::VIEW_TYPE_EXTENSION_POPUP) {
     return;
   }
 
   ChromeEventProcessingWindow* event_window =
-      static_cast<ChromeEventProcessingWindow*>([view()->native_view() window]);
+      static_cast<ChromeEventProcessingWindow*>(
+          [GetExtensionView()->GetNativeView() window]);
   DCHECK([event_window isKindOfClass:[ChromeEventProcessingWindow class]]);
   [event_window redispatchKeyEvent:event.os_event];
 }
 
 }  // namespace extensions