Move AccessTokenStore to Content API, now that it is a pure-virtual class.

content/public/browser/access_token_store.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.
 
 // Defines the Geolocation access token store, and associated factory function.
 // An access token store is responsible for providing the API to persist
 // access tokens, one at a time, and to load them back on mass.
 // The API is a little more complex than one might wish, due to the need for
 // prefs access to happen asynchronously on the UI thread.
 // This API is provided as abstract base classes to allow mocking and testing
 // of clients, without dependency on browser process singleton objects etc.
 
-#ifndef CONTENT_BROWSER_GEOLOCATION_ACCESS_TOKEN_STORE_H_
-#define CONTENT_BROWSER_GEOLOCATION_ACCESS_TOKEN_STORE_H_
+#ifndef CONTENT_PUBLIC_BROWSER_ACCESS_TOKEN_STORE_H_
+#define CONTENT_PUBLIC_BROWSER_ACCESS_TOKEN_STORE_H_
 #pragma once
 
 #include <map>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
 #include "content/common/content_export.h"
 #include "googleurl/src/gurl.h"
 
 class GURL;
 
 namespace net {
 class URLRequestContextGetter;
 }
 
+namespace content {
+
 // Provides storage for the access token used in the network request.
 class AccessTokenStore : public base::RefCountedThreadSafe<AccessTokenStore> {
  public:
   // Map of server URLs to associated access token.
   typedef std::map<GURL, string16> AccessTokenSet;
   typedef base::Callback<void(AccessTokenSet, net::URLRequestContextGetter*)>
       LoadAccessTokensCallbackType;
 
   // |callback| will be invoked once per LoadAccessTokens call, after existing
   // access tokens have been loaded from persistent store. As a convenience the
   // URLRequestContextGetter is also supplied as an argument in |callback|, as
   // in Chrome the call to obtain this must also be performed on the UI thread
   // so it is efficient to piggyback it onto this request.
   // Takes ownership of |callback|.
   CONTENT_EXPORT virtual void LoadAccessTokens(
       const LoadAccessTokensCallbackType& callback) = 0;
 
   virtual void SaveAccessToken(
       const GURL& server_url, const string16& access_token) = 0;
 
  protected:
   friend class base::RefCountedThreadSafe<AccessTokenStore>;
   CONTENT_EXPORT AccessTokenStore();
   CONTENT_EXPORT virtual ~AccessTokenStore();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AccessTokenStore);
 };
 
-#endif  // CONTENT_BROWSER_GEOLOCATION_ACCESS_TOKEN_STORE_H_
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_ACCESS_TOKEN_STORE_H_