Keeps the opt-in IME menu in lock screen.

chrome/browser/chromeos/input_method/input_method_manager_impl.h

Index: chrome/browser/chromeos/input_method/input_method_manager_impl.h
diff --git a/chrome/browser/chromeos/input_method/input_method_manager_impl.h b/chrome/browser/chromeos/input_method/input_method_manager_impl.h
index 64d16a9673070cd76232d3768f0ec6e6e995c185..46a15012093b60d927088a89f5f02a431c8166a6 100644
--- a/chrome/browser/chromeos/input_method/input_method_manager_impl.h
+++ b/chrome/browser/chromeos/input_method/input_method_manager_impl.h
@@ -136,6 +136,9 @@ class InputMethodManagerImpl : public InputMethodManager,
 
     InputMethodManagerImpl* const manager_;
 
+    // True if the opt-in IME menu is activated.
+    bool menu_activated;
+
    protected:
     friend base::RefCounted<chromeos::input_method::InputMethodManager::State>;
     ~StateImpl() override;
@@ -171,6 +174,7 @@ class InputMethodManagerImpl : public InputMethodManager,
   void NotifyImeMenuItemsChanged(
       const std::string& engine_id,
       const std::vector<InputMethodManager::MenuItem>& items) override;
+  void MaybeNotifyImeMenuActivationChanged() override;
 
   // chromeos::UserAddingScreen:
   void OnUserAddingStarted() override;