Attempt at fixing crash in menus shown from infobars. Here's what the

chrome/browser/ui/views/infobars/extension_infobar.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_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_
 #define CHROME_BROWSER_UI_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_
 #pragma once
 
 #include "chrome/browser/extensions/extension_infobar_delegate.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
@@ skipping 11 matching lines @@
                          public ExtensionInfoBarDelegate::DelegateObserver,
                          public views::ViewMenuDelegate {
  public:
   ExtensionInfoBar(TabContentsWrapper* owner,
                    ExtensionInfoBarDelegate* delegate);
 
  private:
   virtual ~ExtensionInfoBar();
 
   // InfoBarView:
-  virtual void Layout();
-  virtual void ViewHierarchyChanged(bool is_add, View* parent, View* child);
-  virtual int ContentMinimumWidth() const;
+  virtual void Layout() OVERRIDE;
+  virtual void ViewHierarchyChanged(bool is_add,
+                                    View* parent,
+                                    View* child) OVERRIDE;
+  virtual int ContentMinimumWidth() const OVERRIDE;
+  virtual void CancelMenu() OVERRIDE;
 
   // ImageLoadingTracker::Observer:
   virtual void OnImageLoaded(SkBitmap* image,
                              const ExtensionResource& resource,
                              int index);
 
   // ExtensionInfoBarDelegate::DelegateObserver:
   virtual void OnDelegateDeleted();
 
   // views::ViewMenuDelegate:
@@ skipping 11 matching lines @@
 
   // Keeps track of images being loaded on the File thread.
   ImageLoadingTracker tracker_;
 
   scoped_ptr<views::MenuRunner> menu_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBar);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_