Add an option in language settings for activating the IME menu.

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 ef233ac12cd47c1c1f4d387e0c9e3e4ec4af8c34..4fd2ad1b0fc0ac981c90a22e1975027b532b5f53 100644
--- a/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
+++ b/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
@@ -39,6 +39,9 @@ void MockInputMethodManager::AddCandidateWindowObserver(
     InputMethodManager::CandidateWindowObserver* observer) {
 }
 
+void MockInputMethodManager::AddImeMenuObserver(
+    InputMethodManager::ImeMenuObserver* observer) {}
+
 void MockInputMethodManager::RemoveObserver(
     InputMethodManager::Observer* observer) {
   ++remove_observer_count_;
@@ -48,6 +51,9 @@ void MockInputMethodManager::RemoveCandidateWindowObserver(
     InputMethodManager::CandidateWindowObserver* observer) {
 }
 
+void MockInputMethodManager::RemoveImeMenuObserver(
+    InputMethodManager::ImeMenuObserver* observer) {}
+
 scoped_ptr<InputMethodDescriptors>
 MockInputMethodManager::GetSupportedInputMethods() const {
   scoped_ptr<InputMethodDescriptors> result(new InputMethodDescriptors);
@@ -239,5 +245,9 @@ void MockInputMethodManager::SetCurrentInputMethodId(
   state_->current_input_method_id = input_method_id;
 }
 
+void MockInputMethodManager::ImeMenuActivated() {}
+
+void MockInputMethodManager::ImeMenuDeactivated() {}
+
 }  // namespace input_method
 }  // namespace chromeos