cros: Defer lockscreen updateUserImage and loadUser calls.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

 // Copyright (c) 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/ui/webui/chromeos/login/signin_screen_handler.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <vector>
@@ skipping 1003 matching lines @@
 }
 
 void SigninScreenHandler::OnUserRemoved(const AccountId& account_id,
                                         bool last_user_removed) {
   CallJS("login.AccountPickerScreen.removeUser", account_id);
   if (last_user_removed)
     OnShowAddUser();
 }
 
 void SigninScreenHandler::OnUserImageChanged(const user_manager::User& user) {
-  if (page_is_ready())
-    CallJS("login.AccountPickerScreen.updateUserImage", user.GetAccountId());
+  if (page_is_ready()) {
+    // TODO(jdufault): Remove DCHECK after resolving crbug.com/699798
+    DCHECK(is_js_initialized_and_ready());
+    CallJSOrDefer("login.AccountPickerScreen.updateUserImage",
+                  user.GetAccountId());
+  }
 }
 
 void SigninScreenHandler::OnPreferencesChanged() {
   // Make sure that one of the login UI is fully functional now, otherwise
   // preferences update would be picked up next time it will be shown.
   if (!webui_visible_) {
     LOG(WARNING) << "Login UI is not active - postponed prefs change.";
     preferences_changed_delayed_ = true;
     return;
   }
@@ skipping 260 matching lines @@
 
 void SigninScreenHandler::HandleToggleKioskAutolaunchScreen() {
   policy::BrowserPolicyConnectorChromeOS* connector =
       g_browser_process->platform_part()->browser_policy_connector_chromeos();
   if (delegate_ && !connector->IsEnterpriseManaged())
     delegate_->ShowKioskAutolaunchScreen();
 }
 
 void SigninScreenHandler::LoadUsers(const base::ListValue& users_list,
                                     bool showGuest) {
-  CallJS("login.AccountPickerScreen.loadUsers",
-         users_list,
-         delegate_->IsShowGuest());
+  // TODO(jdufault): Remove DCHECK after resolving crbug.com/699798
+  DCHECK(is_js_initialized_and_ready());
+  CallJSOrDefer("login.AccountPickerScreen.loadUsers", users_list,
+                delegate_->IsShowGuest());
 }
 
 void SigninScreenHandler::HandleAccountPickerReady() {
   VLOG(0) << "Login WebUI >> AccountPickerReady";
 
   if (delegate_ && !ScreenLocker::default_screen_locker() &&
       !chromeos::IsMachineHWIDCorrect() &&
       !oobe_ui_) {
     delegate_->ShowWrongHWIDScreen();
     return;
@@ skipping 329 matching lines @@
   rate.initial_delay_in_ms = auto_repeat_delay;
   rate.repeat_interval_in_ms = auto_repeat_interval;
   input_method::InputMethodManager::Get()
       ->GetImeKeyboard()
       ->SetAutoRepeatEnabled(true);
   input_method::InputMethodManager::Get()->GetImeKeyboard()->SetAutoRepeatRate(
       rate);
 }
 
 }  // namespace chromeos