Support comma separated hardware keyboard layout.

chrome/browser/chromeos/input_method/mock_input_method_manager.cc

Index: chrome/browser/chromeos/input_method/mock_input_method_manager.cc
diff --git a/chrome/browser/chromeos/input_method/mock_input_method_manager.cc b/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
index 43a3dc82b15bc4becc4fd5944eacebd279490fde..151f83169cd5eb7690b703f5998b6b4987a1a14c 100644
--- a/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
+++ b/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
@@ -74,7 +74,7 @@ const InputMethodDescriptor* MockInputMethodManager::GetInputMethodFromId(
 
 void MockInputMethodManager::EnableLoginLayouts(
     const std::string& language_code,
-    const std::string& initial_layout) {
+    const std::vector<std::string>& initial_layout) {
 }
 
 bool MockInputMethodManager::EnableInputMethods(
@@ -170,7 +170,7 @@ void MockInputMethodManager::set_application_locale(const std::string& value) {
 }
 
 void MockInputMethodManager::set_hardware_keyboard_layout(
-    const std::string& value) {
+    const std::vector<std::string>& value) {
   delegate_.set_hardware_keyboard_layout(value);
 }