Fix crash or hang on Windows when clicking on wrench icon in panel opened from non-extension domain.

chrome/browser/ui/panels/panel_browser_frame_view.h

 // Copyright (c) 2011 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_PANELS_PANEL_BROWSER_FRAME_VIEW_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_FRAME_VIEW_H_
 #pragma once
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 153 matching lines @@
   gfx::Font* GetTitleFont() const;
   SkBitmap* GetFrameTheme(PaintState paint_state) const;
 
   // Make settings button visible if either of the conditions is met:
   // 1) The panel is active, i.e. having focus.
   // 2) The mouse is over the panel.
   void UpdateSettingsButtonVisibility(bool active, bool cursor_in_view);
 
   const Extension* GetExtension() const;
 
-  void EnsureSettingsMenuCreated();
+  bool EnsureSettingsMenuCreated();
 
 #ifdef UNIT_TEST
   void set_mouse_watcher(MouseWatcher* mouse_watcher) {
     mouse_watcher_.reset(mouse_watcher);
   }
 #endif
 
   // The frame that hosts this view. This is a weak reference such that frame_
   // will always be valid in the lifetime of this view.
   BrowserFrame* frame_;
@@ skipping 15 matching lines @@
   views::MenuModelAdapter settings_menu_adapter_;
   // Owned by |settings_menu_runner_|.
   views::MenuItemView* settings_menu_;
   views::MenuRunner settings_menu_runner_;
   scoped_ptr<ExtensionUninstallDialog> extension_uninstall_dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelBrowserFrameView);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_FRAME_VIEW_H_