autofill: Refactor PersonalDataManager::Observer into its own header file.

chrome/test/live_sync/autofill_helper.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_TEST_LIVE_SYNC_AUTOFILL_HELPER_H_
 #define CHROME_TEST_LIVE_SYNC_AUTOFILL_HELPER_H_
 #pragma once
 
 #include <set>
+#include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
-#include "chrome/browser/autofill/personal_data_manager.h"
+#include "base/string16.h"
 #include "chrome/test/live_sync/sync_datatype_helper.h"
 
 class AutofillEntry;
 class AutofillKey;
 class AutofillProfile;
+class AutofillType;
+class PersonalDataManager;
 class WebDataService;
 
 class AutofillHelper : public SyncDatatypeHelper {
  public:
   enum ProfileType {
     PROFILE_MARION,
     PROFILE_HOMER,
     PROFILE_FRASIER,
     PROFILE_NULL
   };
@@ skipping 60 matching lines @@
   static AutofillProfile CreateAutofillProfile(ProfileType type);
  protected:
   AutofillHelper();
   virtual ~AutofillHelper();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AutofillHelper);
 };
 
 #endif  // CHROME_TEST_LIVE_SYNC_AUTOFILL_HELPER_H_