[IME] Supports options page for each IME instead of single options page for each IME extension.

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 <map>
 #include <string>
 #include <vector>
@@ skipping 39 matching lines @@
   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 const InputMethodDescriptor* GetInputMethodFromId(
+      const std::string& input_method_id) 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 void ChangeInputMethod(const std::string& input_method_id) OVERRIDE;
   virtual void ActivateInputMethodProperty(const std::string& key) OVERRIDE;
   virtual void AddInputMethodExtension(
       const std::string& id,
@@ skipping 144 matching lines @@
 
   base::WeakPtrFactory<InputMethodManagerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InputMethodManagerImpl);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_IMPL_H_