Add support for top level geolocation arbitrator, and access token persistenc...

chrome/browser/geolocation/access_token_store.h

+// Copyright (c) 2010 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_GEOLOCATION_ACCESS_TOKEN_STORE_H_
+#define CHROME_BROWSER_GEOLOCATION_ACCESS_TOKEN_STORE_H_
+
+#include "base/ref_counted.h"
+#include "base/string16.h"
+
+class GURL;
+class PrefService;
+
+// Provides storage for the access token used in the network request.
+// Provided to allow for mocking for testing, by decoupling deep browser
+// dependencies (singleton prefs & threads) from the geolocaiton object.
+class AccessTokenStore : public base::RefCounted<AccessTokenStore> {
+ public:
+  static void RegisterPrefs(PrefService* prefs);
+
+  virtual bool SetAccessToken(const GURL& url,
+                              const string16& access_token) = 0;
+  virtual bool GetAccessToken(const GURL& url, string16* access_token) = 0;
+
+ protected:
+  friend class base::RefCounted<AccessTokenStore>;
+  virtual ~AccessTokenStore() {}
+};
+
+// Creates a new access token store backed by the global chome prefs.
+AccessTokenStore* NewChromePrefsAccessTokenStore();
+
+#endif  // CHROME_BROWSER_GEOLOCATION_ACCESS_TOKEN_STORE_H_