Do not display lock for hosted domains

components/signin/core/browser/signin_manager.cc

 // Copyright 2014 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 "components/signin/core/browser/signin_manager.h"
 
 #include <string>
 #include <vector>
 
 #include "base/metrics/histogram.h"
@@ skipping 189 matching lines @@
   }
 
   ClearTransientSigninData();
 
   const std::string account_id = GetAuthenticatedAccountId();
   const std::string username = GetAuthenticatedUsername();
   const base::Time signin_time =
       base::Time::FromInternalValue(
           client_->GetPrefs()->GetInt64(prefs::kSignedInTime));
   clear_authenticated_username();
+  client_->GetPrefs()->ClearPref(prefs::kGoogleServicesHostedDomain);
   client_->GetPrefs()->ClearPref(prefs::kGoogleServicesUsername);
   client_->GetPrefs()->ClearPref(prefs::kSignedInTime);
   client_->ClearSigninScopedDeviceId();
 
   // Erase (now) stale information from AboutSigninInternals.
   NotifyDiagnosticsObservers(USERNAME, "");
 
   // Determine the duration the user was logged in and log that to UMA.
   if (!signin_time.is_null()) {
     base::TimeDelta signed_in_duration = base::Time::Now() - signin_time;
@@ skipping 169 matching lines @@
 
   password_.clear();                           // Don't need it anymore.
   DisableOneClickSignIn(client_->GetPrefs());  // Don't ever offer again.
 }
 
 void SigninManager::ProhibitSignout(bool prohibit_signout) {
   prohibit_signout_ = prohibit_signout;
 }
 
 bool SigninManager::IsSignoutProhibited() const { return prohibit_signout_; }