[signin] Support for CrOS and OAuth2AccessTokenConsumer services.

chrome/browser/signin/signin_manager.cc

 // Copyright (c) 2012 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/signin/signin_manager.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 263 matching lines @@
   }
 #endif
 }
 
 void SigninManager::ProvideSecondFactorAccessCode(
     const std::string& access_code) {
   DCHECK(!possibly_invalid_username_.empty() && !password_.empty() &&
       last_result_.data.empty());
   DCHECK(type_ == SIGNIN_TYPE_CLIENT_LOGIN);
 
+  NotifyDiagnosticsObservers(SIGNIN_TYPE,
+                             SigninTypeToString(SIGNIN_TYPE_CLIENT_LOGIN)
+                             + "(with two factor authentication)");
+
   client_login_.reset(new GaiaAuthFetcher(this,
                                           GaiaConstants::kChromeSource,
                                           profile_->GetRequestContext()));
   client_login_->StartClientLogin(possibly_invalid_username_,
                                   access_code,
                                   "",
                                   std::string(),
                                   std::string(),
                                   GaiaAuthFetcher::HostedAccountsNotAllowed);
 }
@@ skipping 332 matching lines @@
                     NotifySigninValueChanged(field, value));
 }
 
 void SigninManager::NotifyDiagnosticsObservers(
     const TimedSigninStatusField& field,
     const std::string& value) {
   FOR_EACH_OBSERVER(SigninDiagnosticsObserver,
                     signin_diagnostics_observers_,
                     NotifySigninValueChanged(field, value));
 }