We should switch the keyboard layout to the layout the user set according to

chrome/browser/chromeos/input_method/mock_input_method_manager.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 "chrome/browser/chromeos/input_method/mock_input_method_manager.h"
 
 namespace chromeos {
 namespace input_method {
 
 MockInputMethodManager::MockInputMethodManager()
     : add_observer_count_(0),
       remove_observer_count_(0),
       util_(&delegate_, whitelist_.GetSupportedInputMethods()) {
+  active_input_method_ids_.push_back("xkb:us::eng");
 }
 
 MockInputMethodManager::~MockInputMethodManager() {
 }
 
 void MockInputMethodManager::AddObserver(
     InputMethodManager::Observer* observer) {
   ++add_observer_count_;
 }
 
@@ skipping 19 matching lines @@
 }
 
 scoped_ptr<InputMethodDescriptors>
 MockInputMethodManager::GetActiveInputMethods() const {
   scoped_ptr<InputMethodDescriptors> result(new InputMethodDescriptors);
   result->push_back(
       InputMethodUtil::GetFallbackInputMethodDescriptor());
   return result.Pass();
 }
 
+const std::vector<std::string>&
+MockInputMethodManager::GetActiveInputMethodIds() const {
+  return active_input_method_ids_;
+}
+
 size_t MockInputMethodManager::GetNumActiveInputMethods() const {
   return 1;
 }
 
 void MockInputMethodManager::EnableLayouts(const std::string& language_code,
                                            const std::string& initial_layout) {
 }
 
 bool MockInputMethodManager::EnableInputMethods(
     const std::vector<std::string>& new_active_input_method_ids) {
   return true;
 }
 
+bool MockInputMethodManager::EnableInputMethod(
+    const std::string& new_active_input_method_id) {
+  return true;
+}
+
 bool MockInputMethodManager::MigrateOldInputMethods(
     std::vector<std::string>* input_method_ids) {
   return false;
 }
 
 bool MockInputMethodManager::MigrateKoreanKeyboard(
     const std::string& keyboard_id,
     std::vector<std::string>* input_method_ids) {
   return false;
 }
@@ skipping 79 matching lines @@
 
 void MockInputMethodManager::set_application_locale(const std::string& value) {
   delegate_.set_active_locale(value);
 }
 
 void MockInputMethodManager::set_hardware_keyboard_layout(
     const std::string& value) {
   delegate_.set_hardware_keyboard_layout(value);
 }
 
+bool MockInputMethodManager::IsFullLatinKeyboard(
+    const std::string& layout) const {
+  return true;
+}
 }  // namespace input_method
 }  // namespace chromeos