Implement initial chrome.browserAction.openPopup API.

chrome/browser/ui/gtk/browser_actions_toolbar_gtk.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_BROWSER_UI_GTK_BROWSER_ACTIONS_TOOLBAR_GTK_H_
 #define CHROME_BROWSER_UI_GTK_BROWSER_ACTIONS_TOOLBAR_GTK_H_
 
 #include <map>
 #include <string>
 
@@ skipping 100 matching lines @@
   // for incognito.
   bool ShouldDisplayBrowserAction(const extensions::Extension* extension);
 
   // ExtensionToolbarModel::Observer implementation.
   virtual void BrowserActionAdded(const extensions::Extension* extension,
                                   int index) OVERRIDE;
   virtual void BrowserActionRemoved(
       const extensions::Extension* extension) OVERRIDE;
   virtual void BrowserActionMoved(const extensions::Extension* extension,
                                   int index) OVERRIDE;
+  virtual void BrowserActionShowPopup(
+      const extensions::Extension* extension) OVERRIDE;
   virtual void ModelLoaded() OVERRIDE;
 
   // gfx::AnimationDelegate implementation.
   virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
   virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE;
 
   // SimpleMenuModel::Delegate implementation.
   // In our case, |command_id| is be the index into the model's extension list.
   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
@@ skipping 92 matching lines @@
   ui::GtkSignalRegistrar signals_;
 
   content::NotificationRegistrar registrar_;
 
   base::WeakPtrFactory<BrowserActionsToolbarGtk> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionsToolbarGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_BROWSER_ACTIONS_TOOLBAR_GTK_H_