Split infobar_delegate.[cc,h] into separate pieces for the different classes defined within, so that

chrome/browser/extensions/crashed_extension_infobar.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 CHROME_BROWSER_EXTENSIONS_CRASHED_EXTENSION_INFOBAR_H_
 #define CHROME_BROWSER_EXTENSIONS_CRASHED_EXTENSION_INFOBAR_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
-#include "chrome/browser/tab_contents/infobar_delegate.h"
+#include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
 
 class Extension;
 class ExtensionService;
 class SkBitmap;
 
 // This infobar will be displayed when an extension process crashes. It allows
 // the user to reload the crashed extension.
 class CrashedExtensionInfoBarDelegate : public ConfirmInfoBarDelegate {
  public:
   // |tab_contents| should point to the TabContents the infobar will be added
@@ skipping 21 matching lines @@
 
   ExtensionService* extensions_service_;
 
   const std::string extension_id_;
   const std::string extension_name_;
 
   DISALLOW_COPY_AND_ASSIGN(CrashedExtensionInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_CRASHED_EXTENSION_INFOBAR_H_