Added already_open column to chrome://suggestions-internals.

chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui_handler.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_WEBUI_SUGGESTIONS_INTERNALS_SUGGESTIONS_INTERNALS_UI_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_SUGGESTIONS_INTERNALS_SUGGESTIONS_INTERNALS_UI_HANDLER_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "chrome/browser/ui/webui/ntp/suggestions_combiner.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 class Profile;
 
+namespace base {
+class ListValue;
+}
+
 // UI Handler for chrome://suggestions-internals/
 class SuggestionsInternalsUIHandler : public content::WebUIMessageHandler,
                                       public SuggestionsCombiner::Delegate {
  public:
   explicit SuggestionsInternalsUIHandler(Profile* profile);
   virtual ~SuggestionsInternalsUIHandler();
 
   // SuggestionsCombiner::Delegate implementation.
   virtual void OnSuggestionsReady() OVERRIDE;
 
  protected:
   // WebUIMessageHandler implementation.
   // Register our handler to get callbacks from javascript.
   virtual void RegisterMessages() OVERRIDE;
 
   void HandleGetSuggestions(const base::ListValue* one_element_input_string);
 
   // Used to combine suggestions from various sources.
   scoped_ptr<SuggestionsCombiner> suggestions_combiner_;
 
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(SuggestionsInternalsUIHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SUGGESTIONS_INTERNALS_SUGGESTIONS_INTERNALS_UI_HANDLER_H_