Implement initial chrome.browserAction.openPopup API.

chrome/browser/ui/cocoa/extensions/browser_actions_controller.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.
 
 #import "chrome/browser/ui/cocoa/extensions/browser_actions_controller.h"
 
 #include <cmath>
 #include <string>
 
 #include "base/prefs/pref_service.h"
@@ skipping 186 matching lines @@
         if (popup && ![popup isClosing])
           [popup close];
 
         break;
       }
       case chrome::NOTIFICATION_EXTENSION_COMMAND_BROWSER_ACTION_MAC: {
         std::pair<const std::string, gfx::NativeWindow>* payload =
             content::Details<std::pair<const std::string, gfx::NativeWindow> >(
                 details).ptr();
         std::string extension_id = payload->first;
-        gfx::NativeWindow window = payload->second;
-        if (window != browser_->window()->GetNativeWindow())
-          break;
+        // gfx::NativeWindow window = payload->second;
+        // if (window != browser_->window()->GetNativeWindow())
+        //   break;
+        // gfx::NativeWindow window = browser_->window()->GetNativeWindow();
         ExtensionService* service = browser_->profile()->GetExtensionService();
         if (!service)
           break;
         const Extension* extension = service->GetExtensionById(extension_id,
                                                                false);
         if (!extension)
           break;
         BrowserActionButton* button = [owner_ buttonForExtension:extension];
         // |button| can be nil when the browser action has its button hidden.
         if (button)
@@ skipping 643 matching lines @@
   const extensions::ExtensionList& toolbar_items =
       toolbarModel_->toolbar_items();
   if (index < toolbar_items.size()) {
     const Extension* extension = toolbar_items[index].get();
     return [buttons_ objectForKey:base::SysUTF8ToNSString(extension->id())];
   }
   return nil;
 }
 
 @end