Hide handwriting and voice buttons when keyboard is in restricted state

ui/base/ime/chromeos/mock_input_method_manager.h

Index: ui/base/ime/chromeos/mock_input_method_manager.h
diff --git a/ui/base/ime/chromeos/mock_input_method_manager.h b/ui/base/ime/chromeos/mock_input_method_manager.h
index 946e129e631d349b42228e9f174564ccb229bfdf..943d96e7664910589003afdfff0a635adf3a6054 100644
--- a/ui/base/ime/chromeos/mock_input_method_manager.h
+++ b/ui/base/ime/chromeos/mock_input_method_manager.h
@@ -108,8 +108,13 @@ class UI_BASE_IME_EXPORT MockInputMethodManager : public InputMethodManager {
   void MaybeNotifyImeMenuActivationChanged() override;
   void OverrideKeyboardUrlRef(const std::string& keyset) override;
   bool IsEmojiHandwritingVoiceOnImeMenuEnabled() override;
+  void SetFeaturesRestrictedState(FeaturesRestrictedState feature,
+                                  bool restricted) override;
+  uint32_t GetFeaturesRestrictedState() override;
 
  private:
+  uint32_t features_restricted_state_;
+
   DISALLOW_COPY_AND_ASSIGN(MockInputMethodManager);
 };