Add the ability to filter out extension IMEs from the language settings page.

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 a0adad72b99699147c854c121271dace15737a7a..05b605c3525a4bc5ed4f9f3bd95a66211c609817 100644
--- a/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
+++ b/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
@@ -95,6 +95,14 @@ void MockInputMethodManager::AddInputMethodExtension(
 void MockInputMethodManager::RemoveInputMethodExtension(const std::string& id) {
 }
 
+void MockInputMethodManager::GetInputMethodExtensions(
+    InputMethodDescriptors* result) {
+}
+
+void MockInputMethodManager::SetFilteredExtensionImes(
+    std::vector<std::string>* ids) {
+}
+
 bool MockInputMethodManager::SwitchToNextInputMethod() {
   return true;
 }