Update StickyKeys overlay to show or hide AltGr depending on the

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 95142a3f57e71b76c0dda8896a7891d3cfc0633f..0fb09e7e948fb7afe240813ebdcf3f19036ba420 100644
--- a/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
+++ b/chrome/browser/chromeos/input_method/mock_input_method_manager.cc
@@ -10,7 +10,8 @@ namespace input_method {
 MockInputMethodManager::MockInputMethodManager()
     : add_observer_count_(0),
       remove_observer_count_(0),
-      util_(&delegate_, whitelist_.GetSupportedInputMethods()) {
+      util_(&delegate_, whitelist_.GetSupportedInputMethods()),
+      mod3_used_(false) {
   active_input_method_ids_.push_back("xkb:us::eng");
 }
 
@@ -144,6 +145,14 @@ InputMethodDescriptor MockInputMethodManager::GetCurrentInputMethod() const {
   return descriptor;
 }
 
+bool MockInputMethodManager::IsMod3UsedByCurrentInputMethod() const {
+  return mod3_used_;
+}
+
+bool MockInputMethodManager::IsAltGrUsedByCurrentInputMethod() const {
+  return false;
+}
+
 XKeyboard* MockInputMethodManager::GetXKeyboard() {
   return &xkeyboard_;
 }