Create a common base class for all the webdatas

chrome/browser/webdata/web_data_service_factory.cc

 // Copyright (c) 2012 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 "chrome/browser/webdata/web_data_service_factory.h"
 
 #include "base/files/file_path.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/webdata/autofill_web_data_service_impl.h"
 #include "chrome/common/chrome_constants.h"
@@ skipping 13 matching lines @@
 void WebDataServiceWrapper::Shutdown() {
   web_data_service_->ShutdownOnUIThread();
   web_data_service_ = NULL;
 }
 
 scoped_refptr<WebDataService> WebDataServiceWrapper::GetWebData() {
   return web_data_service_.get();
 }
 
 // static
-scoped_ptr<AutofillWebDataService> AutofillWebDataService::FromBrowserContext(
-    content::BrowserContext* context) {
+scoped_refptr<AutofillWebDataService>
+AutofillWebDataService::FromBrowserContext(content::BrowserContext* context) {
   // For this service, the implicit/explicit distinction doesn't
   // really matter; it's just used for a DCHECK.  So we currently
   // cheat and always say EXPLICIT_ACCESS.
   scoped_refptr<WebDataService> service = WebDataServiceFactory::GetForProfile(
       static_cast<Profile*>(context), Profile::EXPLICIT_ACCESS);
 
   if (service.get()) {
-    return scoped_ptr<AutofillWebDataService>(
+    return scoped_refptr<AutofillWebDataService>(
         new AutofillWebDataServiceImpl(service));
   } else {
-    return scoped_ptr<AutofillWebDataService>(NULL);
+    return scoped_refptr<AutofillWebDataService>(NULL);
   }
 }
 
 // static
 scoped_refptr<WebDataService> WebDataService::FromBrowserContext(
     content::BrowserContext* context) {
   // For this service, the implicit/explicit distinction doesn't
   // really matter; it's just used for a DCHECK.  So we currently
   // cheat and always say EXPLICIT_ACCESS.
   return WebDataServiceFactory::GetForProfile(
@@ skipping 51 matching lines @@
 }
 
 ProfileKeyedService*
 WebDataServiceFactory::BuildServiceInstanceFor(Profile* profile) const {
   return new WebDataServiceWrapper(profile);
 }
 
 bool WebDataServiceFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }