cros: Fix crash in AppNonClientFrameViewAura::ControlView::ButtonPressed

chrome/browser/ui/views/frame/app_non_client_frame_view_aura.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_APP_NON_CLIENT_FRAME_VIEW_AURA_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_APP_NON_CLIENT_FRAME_VIEW_AURA_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/views/frame/browser_non_client_frame_view.h"
 
 namespace aura {
 class Window;
 }
 
 // NonClientFrameViewAura implementation for apps.
 class AppNonClientFrameViewAura : public BrowserNonClientFrameView {
  public:
+  static const char kControlWindowName[];  // visible for test
+
   AppNonClientFrameViewAura(
       BrowserFrame* frame, BrowserView* browser_view);
   virtual ~AppNonClientFrameViewAura();
 
   // NonClientFrameView:
   virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
   virtual gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const OVERRIDE;
   virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
   virtual void GetWindowMask(
@@ skipping 25 matching lines @@
   ControlView* control_view_;
   // The widget holding the control_view_.
   views::Widget* control_widget_;
   // Observer for browser frame close.
   scoped_ptr<FrameObserver> frame_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(AppNonClientFrameViewAura);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_APP_NON_CLIENT_FRAME_VIEW_AURA_H_