Try again to land: http://codereview.chromium.org/160483

chrome/browser/extensions/theme_preview_infobar_delegate.h

 // Copyright (c) 2009 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_VIEWS_EXTENSIONS_THEME_PREVIEW_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_VIEWS_EXTENSIONS_THEME_PREVIEW_INFOBAR_DELEGATE_H_
 
 #include "chrome/browser/tab_contents/infobar_delegate.h"
 
 class Extension;
 class ExtensionsService;
 class SkBitmap;
 class TabContents;
 
 // When a user installs a theme, we display it immediately, but provide an
 // infobar allowing them to cancel.
 class ThemePreviewInfobarDelegate : public ConfirmInfoBarDelegate {
  public:
   ThemePreviewInfobarDelegate(TabContents* tab_contents,
                               const std::string& name);
-  virtual bool EqualsDelegate(InfoBarDelegate* delegate) const;
   virtual void InfoBarClosed();
   virtual std::wstring GetMessageText() const;
   virtual SkBitmap* GetIcon() const;
   virtual ThemePreviewInfobarDelegate* AsThemePreviewInfobarDelegate();
   virtual int GetButtons() const;
   virtual std::wstring GetButtonLabel(
       ConfirmInfoBarDelegate::InfoBarButton button) const;
   virtual bool Cancel();
 
  private:
   Profile* profile_;
   std::string name_;  // name of theme to install
 };
 
 #endif  // CHROME_BROWSER_VIEWS_EXTENSIONS_THEME_PREVIEW_INFOBAR_DELEGATE_H_