Delete the GTK+ port of Chrome.

chrome/browser/repost_form_warning_controller.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_REPOST_FORM_WARNING_CONTROLLER_H_
 #define CHROME_BROWSER_REPOST_FORM_WARNING_CONTROLLER_H_
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/ui/tab_modal_confirm_dialog_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 
 // This class is used to continue or cancel a pending reload when the
 // repost form warning is shown. It is owned by the platform-specific
 // |TabModalConfirmDialog{Gtk, Mac, Views, WebUI}| classes.
 class RepostFormWarningController : public TabModalConfirmDialogDelegate,
                                     public content::WebContentsObserver {
  public:
   explicit RepostFormWarningController(content::WebContents* web_contents);
   virtual ~RepostFormWarningController();
 
  private:
   // TabModalConfirmDialogDelegate methods:
   virtual base::string16 GetTitle() OVERRIDE;
   virtual base::string16 GetDialogMessage() OVERRIDE;
   virtual base::string16 GetAcceptButtonTitle() OVERRIDE;
-#if defined(TOOLKIT_GTK)
-  virtual const char* GetAcceptButtonIcon() OVERRIDE;
-  virtual const char* GetCancelButtonIcon() OVERRIDE;
-#endif  // defined(TOOLKIT_GTK)
   virtual void OnAccepted() OVERRIDE;
   virtual void OnCanceled() OVERRIDE;
   virtual void OnClosed() OVERRIDE;
 
   // content::WebContentsObserver methods:
   virtual void BeforeFormRepostWarningShow() OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(RepostFormWarningController);
 };
 
 #endif  // CHROME_BROWSER_REPOST_FORM_WARNING_CONTROLLER_H_