Keeps the opt-in IME menu in lock screen.

chrome/browser/chromeos/input_method/input_method_manager_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_IMPL_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 118 matching lines @@
 
     // The list of enabled extension IMEs.
     std::vector<std::string> enabled_extension_imes;
 
     // Extra input methods that have been explicitly added to the menu, such as
     // those created by extension.
     std::map<std::string, InputMethodDescriptor> extra_input_methods;
 
     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;
   };
 
   // Constructs an InputMethodManager instance. The client is responsible for
   // calling |SetUISessionState| in response to relevant changes in browser
   // state.
   InputMethodManagerImpl(std::unique_ptr<InputMethodDelegate> delegate,
                          bool enable_extension_loading);
@@ skipping 15 matching lines @@
   void RemoveImeMenuObserver(
       InputMethodManager::ImeMenuObserver* observer) override;
   std::unique_ptr<InputMethodDescriptors> GetSupportedInputMethods()
       const override;
   void ActivateInputMethodMenuItem(const std::string& key) override;
   bool IsISOLevel5ShiftUsedByCurrentInputMethod() const override;
   bool IsAltGrUsedByCurrentInputMethod() const override;
   void NotifyImeMenuItemsChanged(
       const std::string& engine_id,
       const std::vector<InputMethodManager::MenuItem>& items) override;
+  void MaybeNotifyImeMenuActivationChanged() override;
 
   // chromeos::UserAddingScreen:
   void OnUserAddingStarted() override;
   void OnUserAddingFinished() override;
 
   ImeKeyboard* GetImeKeyboard() override;
   InputMethodUtil* GetInputMethodUtil() override;
   ComponentExtensionIMEManager* GetComponentExtensionIMEManager() override;
   bool IsLoginKeyboard(const std::string& layout) const override;
 
@@ skipping 108 matching lines @@
   typedef std::map<Profile*, EngineMap, ProfileCompare> ProfileEngineMap;
   ProfileEngineMap engine_map_;
 
   DISALLOW_COPY_AND_ASSIGN(InputMethodManagerImpl);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_IMPL_H_