Add username of account that has an auth error.

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 229 matching lines @@
   StopTrackingAccount(key);
 }
 
 std::string AccountTracker::GetAccountId() const {
   if (account_errors_.size() == 0)
     return std::string();
   else
     return account_errors_.begin()->first;
 }
 
+std::string AccountTracker::GetUsername() const {
+  std::string id = GetAccountId();
+  if (!id.empty()) {
+    std::map<std::string, AccountState>::const_iterator it =
+        accounts_.find(id);
+    if (it != accounts_.end())
+      return it->second.ids.email;
+  }
+  return std::string();
+}
+
 GoogleServiceAuthError AccountTracker::GetAuthStatus() const {
   if (account_errors_.size() == 0)
     return GoogleServiceAuthError::AuthErrorNone();
   else
     return account_errors_.begin()->second;
 }
 
 void AccountTracker::DeleteFetcher(AccountIdFetcher* fetcher) {
   const std::string& account_key = fetcher->account_key();
   DCHECK(ContainsKey(user_info_requests_, account_key));
@@ skipping 48 matching lines @@
   LOG(ERROR) << "OnOAuthError";
   tracker_->OnUserInfoFetchFailure(this);
 }
 
 void AccountIdFetcher::OnNetworkError(int response_code) {
   LOG(ERROR) << "OnNetworkError " << response_code;
   tracker_->OnUserInfoFetchFailure(this);
 }
 
 }  // namespace extensions