Making window.focus() work in Chrome

chrome/browser/extensions/extension_host.h

 // Copyright (c) 2010 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_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
 #pragma once
 
 #include <string>
 #include <list>
@@ skipping 147 matching lines @@
   virtual void ShowCreatedWidget(int route_id,
                                  const gfx::Rect& initial_pos);
   virtual void ShowContextMenu(const ContextMenuParams& params);
   virtual void StartDragging(const WebDropData& drop_data,
                              WebKit::WebDragOperationsMask allowed_operations,
                              const SkBitmap& image,
                              const gfx::Point& image_offset);
   virtual void UpdateDragCursor(WebKit::WebDragOperation operation);
   virtual void GotFocus();
   virtual void TakeFocus(bool reverse);
+  virtual void Activate();
+  virtual void Deactivate();
   virtual bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
                                       bool* is_keyboard_shortcut);
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
   virtual void HandleMouseMove();
   virtual void HandleMouseDown();
   virtual void HandleMouseLeave();
   virtual void UpdatePreferredSize(const gfx::Size& new_size);
 
   // NotificationObserver
   virtual void Observe(NotificationType type,
@@ skipping 94 matching lines @@
   // The relevant TabContents associated with this ExtensionHost, if any.
   TabContents* associated_tab_contents_;
 
   // Used to measure how long it's been since the host was created.
   PerfTimer since_created_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionHost);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_