kiosk: Fix unable to type in input fields.

chrome/browser/chromeos/login/app_launch_controller.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/chromeos/login/app_launch_controller.h"
 
 #include "apps/app_window.h"
 #include "apps/app_window_registry.h"
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 222 matching lines @@
   if (online && !network_config_requested_)
     startup_app_launcher_->ContinueWithNetworkReady();
   else if (network_wait_timedout_)
     MaybeShowNetworkConfigureUI();
 }
 
 void AppLaunchController::OnProfileLoaded(Profile* profile) {
   DVLOG(1) << "Profile loaded... Starting app launch.";
   profile_ = profile;
 
+  // This is needed to trigger input method extensions being loaded.
+  profile_->InitChromeOSPreferences();

[Nikita (slow), 2014/04/28 13:04:17]

Should this use similar approach as in https://codereview.chromium.org/253463002
instead?

[xiyuan, 2014/04/28 16:38:32]

OAuth2LoginManager code is not executed for kiosk. It is be better just do
InitChromeOSPreferences.

+
   kiosk_profile_loader_.reset();
   startup_app_launcher_.reset(
       new StartupAppLauncher(profile_, app_id_, diagnostic_mode_, this));
   startup_app_launcher_->Initialize();
 }
 
 void AppLaunchController::OnProfileLoadFailed(
     KioskAppLaunchError::Error error) {
   OnLaunchFailed(error);
 }
@@ skipping 164 matching lines @@
   KioskAppLaunchError::Save(error);
   chrome::AttemptUserExit();
   CleanUp();
 }
 
 bool AppLaunchController::IsShowingNetworkConfigScreen() {
   return network_config_requested_;
 }
 
 }   // namespace chromeos