Multiple account support in chrome.identity.getAuthToken

chrome/browser/extensions/api/identity/account_tracker.cc

 // 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.
 
 #include "chrome/browser/extensions/api/identity/account_tracker.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 59 matching lines @@
       else
         return std::vector<AccountIds>();
 
     } else if (is_visible) {
       accounts.push_back(state.ids);
     }
   }
   return accounts;
 }
 
+std::string AccountTracker::FindAccountKeyByGaiaId(const std::string& gaia_id) {
+  for (std::map<std::string, AccountState>::const_iterator it =
+           accounts_.begin();
+       it != accounts_.end();
+       ++it) {
+    const AccountState& state = it->second;
+    if (state.ids.gaia == gaia_id) {
+      return state.ids.account_key;
+    }
+  }
+
+  return std::string();
+}
+
 void AccountTracker::OnRefreshTokenAvailable(const std::string& account_id) {
   // Ignore refresh tokens if there is no primary account ID at all.
   if (signin_manager_account_id().empty())
     return;
 
   DVLOG(1) << "AVAILABLE " << account_id;
   ClearAuthError(account_id);
   UpdateSignInState(account_id, true);
 }
 
@@ skipping 229 matching lines @@
   LOG(ERROR) << "OnOAuthError";
   tracker_->OnUserInfoFetchFailure(this);
 }
 
 void AccountIdFetcher::OnNetworkError(int response_code) {
   LOG(ERROR) << "OnNetworkError " << response_code;
   tracker_->OnUserInfoFetchFailure(this);
 }
 
 }  // namespace extensions