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

chrome/browser/extensions/extension_crash_recovery_browsertest.cc

 // 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.
 
 #include "base/process_util.h"
 #include "chrome/browser/extensions/crashed_extension_infobar.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/tab_contents/infobar_delegate.h"
+#include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/result_codes.h"
 #include "chrome/test/ui_test_utils.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/tab_contents.h"
 
 class ExtensionCrashRecoveryTest : public ExtensionBrowserTest {
  protected:
@@ skipping 442 matching lines @@
   LoadSecondExtension();
   CrashExtension(size_before);
   ASSERT_EQ(size_before + 1, GetExtensionService()->extensions()->size());
   ASSERT_EQ(crash_size_before + 1,
             GetExtensionService()->terminated_extensions()->size());
 
   GetExtensionService()->UnloadAllExtensions();
   ASSERT_EQ(crash_size_before,
             GetExtensionService()->terminated_extensions()->size());
 }