Additional logging for crash mentioned in crbug.com/422918

chrome/browser/chromeos/login/user_flow.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 "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/chromeos/login/user_flow.h"
 #include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
 
 namespace chromeos {
 
 namespace {
 
 void UnregisterFlow(const std::string& user_id) {
   ChromeUserManager::Get()->ResetUserFlow(user_id);
 }
 
 } // namespace
 
 
 UserFlow::UserFlow() : host_(NULL) {}
 
 UserFlow::~UserFlow() {}
 
+void UserFlow::SetHost(LoginDisplayHost* host) {
+  // TODO(antrim): remove this output once crash reason is found.
+  LOG(ERROR) << "Flow " << this << " got host " << host;
+  host_ = host;
+}
+
 DefaultUserFlow::~DefaultUserFlow() {}
 
 void DefaultUserFlow::AppendAdditionalCommandLineSwitches() {
 }
 
 bool DefaultUserFlow::CanLockScreen() {
   return true;
 }
 
 bool DefaultUserFlow::ShouldShowSettings() {
@@ skipping 48 matching lines @@
 }
 
 void ExtendedUserFlow::UnregisterFlowSoon() {
   std::string id_copy(user_id());
   base::MessageLoop::current()->PostTask(FROM_HERE,
       base::Bind(&UnregisterFlow,
                  id_copy));
 }
 
 }  // namespace chromeos