Implement initial chrome.browserAction.openPopup API.

chrome/browser/ui/views/browser_actions_container.cc

 // 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/ui/views/browser_actions_container.h"
 
 #include "base/compiler_specific.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 455 matching lines @@
   content::WebContents* active_tab =
       browser_->tab_strip_model()->GetActiveWebContents();
   if (!active_tab)
     return -1;
 
   return SessionTabHelper::FromWebContents(active_tab)->session_id().id();
 }
 
 void BrowserActionsContainer::OnBrowserActionExecuted(
     BrowserActionButton* button) {
+  // Show popup here for aura.
   ShowPopup(button, ExtensionPopup::SHOW);
 }
 
 void BrowserActionsContainer::OnBrowserActionVisibilityChanged() {
   SetVisible(!browser_action_views_.empty());
   owner_view_->Layout();
   owner_view_->SchedulePaint();
 }
 
 gfx::Point BrowserActionsContainer::GetViewContentOffset() const {
@@ skipping 354 matching lines @@
       views::BubbleBorder::TOP_LEFT : views::BubbleBorder::TOP_RIGHT;
   popup_ = ExtensionPopup::ShowPopup(popup_url,
                                      browser_,
                                      reference_view,
                                      arrow,
                                      show_action);
   popup_->GetWidget()->AddObserver(this);
   popup_button_ = button;
   popup_button_->SetButtonPushed();
 }