We should switch the keyboard layout to the layout the user set according to

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 "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chromeos/ime/fake_input_method_delegate.h"
 #include "chromeos/ime/input_method_manager.h"
@@ skipping 13 matching lines @@
   virtual void AddObserver(InputMethodManager::Observer* observer) OVERRIDE;
   virtual void AddCandidateWindowObserver(
       InputMethodManager::CandidateWindowObserver* observer) OVERRIDE;
   virtual void RemoveObserver(InputMethodManager::Observer* observer) OVERRIDE;
   virtual void RemoveCandidateWindowObserver(
       InputMethodManager::CandidateWindowObserver* observer) OVERRIDE;
   virtual scoped_ptr<InputMethodDescriptors>
       GetSupportedInputMethods() const OVERRIDE;
   virtual scoped_ptr<InputMethodDescriptors>
       GetActiveInputMethods() const OVERRIDE;
+  virtual const std::vector<std::string>& GetActiveInputMethodIds() const
+      OVERRIDE;
   virtual size_t GetNumActiveInputMethods() const OVERRIDE;
   virtual void EnableLayouts(const std::string& language_code,
                              const std::string& initial_layout) OVERRIDE;
   virtual bool EnableInputMethods(
       const std::vector<std::string>& new_active_input_method_ids) OVERRIDE;
+  virtual bool EnableInputMethod(
+      const std::string& new_active_input_method_id) OVERRIDE;
   virtual bool MigrateOldInputMethods(
       std::vector<std::string>* input_method_ids) OVERRIDE;
   virtual bool MigrateKoreanKeyboard(
       const std::string& keyboard_id,
       std::vector<std::string>* input_method_ids) OVERRIDE;
   virtual bool SetInputMethodConfig(
       const std::string& section,
       const std::string& config_name,
       const InputMethodConfigValue& value) OVERRIDE;
   virtual void ChangeInputMethod(const std::string& input_method_id) OVERRIDE;
@@ skipping 12 matching lines @@
   virtual bool SwitchToNextInputMethod() OVERRIDE;
   virtual bool SwitchToPreviousInputMethod() OVERRIDE;
   virtual bool SwitchInputMethod(const ui::Accelerator& accelerator) OVERRIDE;
   virtual InputMethodDescriptor GetCurrentInputMethod() const OVERRIDE;
   virtual InputMethodPropertyList
       GetCurrentInputMethodProperties() const OVERRIDE;
   virtual XKeyboard* GetXKeyboard() OVERRIDE;
   virtual InputMethodUtil* GetInputMethodUtil() OVERRIDE;
   virtual ComponentExtensionIMEManager*
       GetComponentExtensionIMEManager() OVERRIDE;
+  virtual bool IsFullLatinKeyboard(const std::string& layout) const OVERRIDE;
 
   // Sets an input method ID which will be returned by GetCurrentInputMethod().
   void SetCurrentInputMethodId(const std::string& input_method_id) {
     current_input_method_id_ = input_method_id;
   }
 
   // Set values that will be provided to the InputMethodUtil.
   void set_application_locale(const std::string& value);
   void set_hardware_keyboard_layout(const std::string& value);
 
   // TODO(yusukes): Add more variables for counting the numbers of the API calls
   int add_observer_count_;
   int remove_observer_count_;
 
  private:
   // The value GetCurrentInputMethod().id() will return.
   std::string current_input_method_id_;
 
   InputMethodWhitelist whitelist_;
   FakeInputMethodDelegate delegate_;  // used by util_
   InputMethodUtil util_;
   MockXKeyboard xkeyboard_;
 
+  // The active input method ids cache (actually default only)
+  std::vector<std::string> active_input_method_ids_;
+
   DISALLOW_COPY_AND_ASSIGN(MockInputMethodManager);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_MOCK_INPUT_METHOD_MANAGER_H_