[Extensions Toolbar Views] Add a ToolbarActionView unittest

chrome/browser/ui/views/toolbar/chevron_menu_button.cc

 // Copyright 2014 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/toolbar/chevron_menu_button.h"
 
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_action.h"
@@ skipping 215 matching lines @@
     ui::MenuSourceType source_type) {
   ToolbarActionView* view = browser_actions_container_->GetToolbarActionViewAt(
       start_index_ + id - 1);
   ExtensionActionViewController* view_controller =
       static_cast<ExtensionActionViewController*>(view->view_controller());
   if (!view_controller->extension()->ShowConfigureContextMenus())
     return false;
 
   scoped_refptr<ExtensionContextMenuModel> context_menu_contents =
       new ExtensionContextMenuModel(view_controller->extension(),
-                                    view->browser(),
+                                    view_controller->browser(),
                                     view_controller);
   views::MenuRunner context_menu_runner(context_menu_contents.get(),
                                         views::MenuRunner::HAS_MNEMONICS |
                                             views::MenuRunner::IS_NESTED |
                                             views::MenuRunner::CONTEXT_MENU);
 
   // We can ignore the result as we delete ourself.
   // This blocks until the user chooses something or dismisses the menu.
   if (context_menu_runner.RunMenuAt(owner_->GetWidget(),
                                     NULL,
@@ skipping 185 matching lines @@
   // We should never try to show an overflow menu when one is already visible.
   DCHECK(!menu_controller_);
   menu_controller_.reset(new MenuController(
       this, browser_actions_container_, for_drop));
   menu_controller_->RunMenu(GetWidget());
 }
 
 void ChevronMenuButton::MenuDone() {
   menu_controller_.reset();
 }