Add action for each button on opt-in IME menu.

chrome/browser/chromeos/input_method/mock_input_method_manager.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_MOCK_INPUT_METHOD_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_MOCK_INPUT_METHOD_MANAGER_H_
 
 #include <stddef.h>
 
 #include "base/macros.h"
@@ skipping 88 matching lines @@
   bool MigrateInputMethods(std::vector<std::string>* input_method_ids) override;
   scoped_refptr<InputMethodManager::State> CreateNewState(
       Profile* profile) override;
   scoped_refptr<InputMethodManager::State> GetActiveIMEState() override;
   void SetState(scoped_refptr<InputMethodManager::State> state) override;
   void ImeMenuActivationChanged(bool is_active) override;
   void NotifyImeMenuItemsChanged(
       const std::string& engine_id,
       const std::vector<InputMethodManager::MenuItem>& items) override;
   void MaybeNotifyImeMenuActivationChanged() override;
+  void OverrideKeyboardUrlRef(const std::string& keyset) override;
+  bool IsEmojiHandwritingVoiceOnImeMenuEnabled() override;
 
   // Sets an input method ID which will be returned by GetCurrentInputMethod().
   void SetCurrentInputMethodId(const std::string& input_method_id);
 
   void SetComponentExtensionIMEManager(
       std::unique_ptr<ComponentExtensionIMEManager> comp_ime_manager);
 
   // Set values that will be provided to the InputMethodUtil.
   void set_application_locale(const std::string& value);
 
@@ skipping 14 matching lines @@
   bool mod3_used_;
   std::unique_ptr<ComponentExtensionIMEManager> comp_ime_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(MockInputMethodManager);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_MOCK_INPUT_METHOD_MANAGER_H_