Multiple account support in chrome.identity.getAuthToken

chrome/browser/extensions/api/identity/account_tracker.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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_IDENTITY_ACCOUNT_TRACKER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_ACCOUNT_TRACKER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 46 matching lines @@
   void ReportAuthError(const std::string& account_key,
                        const GoogleServiceAuthError& error);
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // Returns the list of accounts that are signed in, and for which gaia IDs
   // have been fetched. The primary account for the profile will be first
   // in the vector. Additional accounts will be in order of their gaia IDs.
   std::vector<AccountIds> GetAccounts() const;
+  std::string FindAccountKeyByGaiaId(const std::string& gaia_id);
 
   // OAuth2TokenService::Observer implementation.
   virtual void OnRefreshTokenAvailable(const std::string& account_key) OVERRIDE;
   virtual void OnRefreshTokenRevoked(const std::string& account_key) OVERRIDE;
 
   void OnUserInfoFetchSuccess(AccountIdFetcher* fetcher,
                               const std::string& gaia_id);
   void OnUserInfoFetchFailure(AccountIdFetcher* fetcher);
 
   // AuthStatusProvider implementation.
@@ skipping 66 matching lines @@
   AccountTracker* tracker_;
   const std::string account_key_;
 
   scoped_ptr<OAuth2TokenService::Request> login_token_request_;
   scoped_ptr<gaia::GaiaOAuthClient> gaia_oauth_client_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_ACCOUNT_TRACKER_H_