Support comma separated hardware keyboard layout.

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.cc
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
index d1f76ce88417c1175de246f15e5ba50e0997af21..3130cbcfa7282b88ac0e0ce4e344ca02ecf9bdf8 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
@@ -580,9 +580,11 @@ void GuestLanguageSetCallbackData::Callback(
       input_method::InputMethodManager::Get();

[Alexander Alekseev, 2014/02/11 13:36:02]

Need to enable here all the other (non-login) hardware input method IDs here.

[Seigo Nonaka, 2014/02/12 13:21:02]

Done.

   // Active layout must be hardware "login layout".
   // The previous one must be "locale default layout".
-  const std::string login_input_method =
-      ime_manager->GetInputMethodUtil()->GetHardwareLoginInputMethodId();
-  ime_manager->ChangeInputMethod(login_input_method);
+  std::vector<std::string> login_input_methods;
+  ime_manager->GetInputMethodUtil()->GetHardwareLoginInputMethodId(
+      &login_input_methods);
+  ime_manager->ChangeInputMethod(
+      login_input_methods.empty() ? "" : login_input_methods[0]);
 
   const std::string locale_default_input_method =
       ime_manager->GetInputMethodUtil()->