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

chrome/browser/ui/webui/options/autofill_options_handler.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_UI_WEBUI_OPTIONS_AUTOFILL_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_AUTOFILL_OPTIONS_HANDLER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
-#include "chrome/browser/autofill/personal_data_manager.h"
+#include "chrome/browser/autofill/personal_data_manager_observer.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 
+class PersonalDataManager;
+
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 class AutofillOptionsHandler : public OptionsPageUIHandler,
-                               public PersonalDataManager::Observer {
+                               public PersonalDataManagerObserver {
  public:
   AutofillOptionsHandler();
   virtual ~AutofillOptionsHandler();
 
   // OptionsPageUIHandler implementation.
   virtual void GetLocalizedValues(base::DictionaryValue* localized_strings);
   virtual void Initialize();
   virtual void RegisterMessages();
 
-  // PersonalDataManager::Observer implementation.
+  // PersonalDataManagerObserver implementation.
   virtual void OnPersonalDataChanged() OVERRIDE;
 
  private:
   // Loads the strings for the address and credit card overlays.
   void SetAddressOverlayStrings(base::DictionaryValue* localized_strings);
   void SetCreditCardOverlayStrings(base::DictionaryValue* localized_strings);
 
   // Loads Autofill addresses and credit cards using the PersonalDataManager.
   void LoadAutofillData();
 
@@ skipping 37 matching lines @@
   void ValidateFaxNumbers(const base::ListValue* args);
 
   // The personal data manager, used to load Autofill profiles and credit cards.
   // Unowned pointer, may not be NULL.
   PersonalDataManager* personal_data_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillOptionsHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_AUTOFILL_OPTIONS_HANDLER_H_