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

chrome/browser/ui/views/infobars/infobar_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_VIEWS_INFOBARS_INFOBAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_INFOBARS_INFOBAR_VIEW_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ skipping 65 matching lines @@
   virtual int ContentMinimumWidth() const;
 
   // These return x coordinates delimiting the usable area for subclasses to lay
   // out their controls.
   int StartX() const;
   int EndX() const;
 
   // Convenience getter.
   const InfoBarContainer::Delegate* container_delegate() const;
 
+  // Subclasses must override and cancel any menus. Because we are deleted after
+  // a delay and after our delegate is deleted we have to explicitly cancel the
+  // menu rather than relying on the destructor to cancel the menu.
+  virtual void CancelMenu() = 0;

[Peter Kasting, 2011/09/12 18:06:00]

Nit: I would prefer to not make this pure virtual.  One way would be to simply
provide a no-op implementation here.  Another way would be to move the menu
runner object into this base class and then provide subclasses sufficient
accessors and/or hoist more of the menu-running code too (if it's sufficiently
the same in the subclasses that use it).

I would probably also name this CloseMenus() and simply comment it "Closes any
open menus" or similar.

+
  private:
   static const int kHorizontalPadding;
 
   // InfoBar:
   virtual void PlatformSpecificShow(bool animate) OVERRIDE;
   virtual void PlatformSpecificHide(bool animate) OVERRIDE;
   virtual void PlatformSpecificOnHeightsRecalculated() OVERRIDE;
 
   // views::View:
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
@@ skipping 16 matching lines @@
 
   // The paths for the InfoBarBackground to draw, sized according to the heights
   // above.
   SkPath fill_path_;
   SkPath stroke_path_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_INFOBARS_INFOBAR_VIEW_H_