Un-refcount AutofillWebData and TokenWebData

chrome/browser/webdata/token_web_data.h

 // Copyright 2013 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.
 
 // Chromium settings and storage represent user-selected preferences and
 // information and MUST not be extracted, overwritten or modified except
 // through Chromium defined APIs.
 
 #ifndef CHROME_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__
 #define CHROME_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__
@@ skipping 17 matching lines @@
 
 namespace content {
 class BrowserContext;
 }
 
 // TokenWebData is a data repository for storage of authentication tokens.
 
 class TokenWebData : public WebDataServiceBase {
  public:
   // Retrieve a WebDataService for the given context.
-  static scoped_refptr<TokenWebData> FromBrowserContext(
-      content::BrowserContext* context);
+  static TokenWebData* FromBrowserContext(content::BrowserContext* context);
 
   TokenWebData(scoped_refptr<WebDatabaseService> wdbs,
                const ProfileErrorCallback& callback);
 
+  virtual ~TokenWebData();
+
   // Set a token to use for a specified service.
   void SetTokenForService(const std::string& service,
                           const std::string& token);
 
   // Remove all tokens stored in the web database.
   void RemoveAllTokens();
 
   // Null on failure. Success is WDResult<std::vector<std::string> >
   virtual Handle GetAllTokens(WebDataServiceConsumer* consumer);
 
  protected:
   // For unit tests, passes a null callback.
   TokenWebData();
 
-  virtual ~TokenWebData();
-
  private:
   scoped_refptr<TokenWebDataBackend> token_backend_;
 
   DISALLOW_COPY_AND_ASSIGN(TokenWebData);
 };
 
 #endif  // CHROME_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__