Save the oauth client id used in App Notification setup

chrome/browser/extensions/extension_prefs.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_EXTENSIONS_EXTENSION_PREFS_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_
 #pragma once
 
 #include <set>
 #include <string>
@@ skipping 153 matching lines @@
   void AcknowledgeOrphanedExtension(const std::string& extension_id);
 
   // Returns true if the extension notification code has already run for the
   // first time for this profile. Currently we use this flag to mean that any
   // extensions that would trigger notifications should get silently
   // acknowledged. This is a fuse. Calling it the first time returns false.
   // Subsequent calls return true. It's not possible through an API to ever
   // reset it. Don't call it unless you mean it!
   bool SetAlertSystemFirstRun();
 
-  // Whether app notifications setup is done for the given app.
-  bool IsAppNotificationSetupDone(const std::string& extension_id) const;
-  void SetAppNotificationSetupDone(const std::string& extension_id,
-      bool value);
+  // The oauth client id used for app notification setup, if any.
+  std::string AppNotificationClientId(const std::string& extension_id) const;
+  void SetAppNotificationClientId(const std::string& extension_id,
+                                  const std::string& oauth_client_id);
 
   // Whether app notifications are disabled for the given app.
   bool IsAppNotificationDisabled(const std::string& extension_id) const;
   void SetAppNotificationDisabled(const std::string& extension_id, bool value);
 
   // Is the extension with |extension_id| allowed by policy (checking both
   // whitelist and blacklist).
   bool IsExtensionAllowedByPolicy(const std::string& extension_id,
                                   Extension::Location location);
 
@@ skipping 339 matching lines @@
 
   // Weak pointer, owned by Profile.
   ExtensionPrefValueMap* extension_pref_value_map_;
 
   scoped_refptr<ExtensionContentSettingsStore> content_settings_store_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrefs);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_