Add more checks to ShowPageActionPopup

chrome/browser/ui/views/location_bar/location_bar_view.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_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 531 matching lines @@
   // the hostname.  As the show animation runs, the current inset gradually
   // moves to 0.
   int starting_omnibox_leading_inset_;
   int current_omnibox_leading_inset_;
   // The width is always positive.  The ending width is the width of the entire
   // omnibox URL.  As the show animation runs, the current width gradually moves
   // from the width of the hostname to the ending value.
   int current_omnibox_width_;
   int ending_omnibox_width_;
 
+  // This is a debug state variable that stores if the WebContents was null
+  // during the last RefreshPageAction.
+  bool web_contents_null_at_last_refresh_;
+
   DISALLOW_COPY_AND_ASSIGN(LocationBarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_