Fix a bug in ShouldDisplayURL.

content/browser/tab_contents/tab_contents.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 CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 109 matching lines @@
   // these may change over time.
   RenderProcessHost* GetRenderProcessHost() const;
   RenderViewHost* render_view_host() const {
     return render_manager_.current_host();
   }
 
   WebUI* committed_web_ui() const {
     return render_manager_.web_ui();
   }
 
+  // Returns the committed WebUI if one exists, otherwise the pending one.
+  // Callers who want to use the pending WebUI for the pending navigation entry
+  // should use GetWebUIForCurrentState instead.
   WebUI* web_ui() const {
     return render_manager_.web_ui() ? render_manager_.web_ui()
         : render_manager_.pending_web_ui();
   }
 
   // Returns the currently active RenderWidgetHostView. This may change over
   // time and can be NULL (during setup and teardown).
   RenderWidgetHostView* GetRenderWidgetHostView() const {
     return render_manager_.GetRenderWidgetHostView();
   }
@@ skipping 704 matching lines @@
   ObserverList<TabContentsObserver> observers_;
 
   // Content restrictions, used to disable print/copy etc based on content's
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_