Refactoring for InputMethodEngine and InputMethodEventRouter.

chrome/browser/chromeos/input_method/input_method_engine_interface.h

 // Copyright 2013 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_ENGINE_INTERFACE_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_INTERFACE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 154 matching lines @@
                                           const std::string& text,
                                           int cursor_pos,
                                           int anchor_pos) = 0;
 
     // Called when Chrome terminates on-going text input session.
     virtual void OnReset(const std::string& engine_id) = 0;
   };
 
   virtual ~InputMethodEngineInterface() {}
 
-  virtual const input_method::InputMethodDescriptor& GetDescriptor() const = 0;
-
-  // Called when the input metho initialization is done.
-  virtual void NotifyImeReady() = 0;
-
   // Set the current composition and associated properties.
   virtual bool SetComposition(int context_id,
                               const char* text,
                               int selection_start,
                               int selection_end,
                               int cursor,
                               const std::vector<SegmentInfo>& segments,
                               std::string* error) = 0;
 
   // Clear the current composition.
@@ skipping 34 matching lines @@
   // Set the list of items that appears in the language menu when this IME is
   // active.
   virtual bool SetMenuItems(const std::vector<MenuItem>& items) = 0;
 
   // Update the state of the menu items.
   virtual bool UpdateMenuItems(const std::vector<MenuItem>& items) = 0;
 
   // Returns true if this IME is active, false if not.
   virtual bool IsActive() const = 0;
 
+  // Returns the current active engine id.

[Yuki, 2014/08/06 04:42:23]

s/engine/component/ at least.
Better to mention to input_component id.

[Shu Chen, 2014/08/06 05:45:03]

Done.

+  virtual const std::string& GetActiveComponentId() const = 0;
+
   // Deletes |number_of_chars| unicode characters as the basis of |offset| from
   // the surrounding text. The |offset| is relative position based on current
   // caret.
   // NOTE: Currently we are falling back to backspace forwarding workaround,
   // because delete_surrounding_text is not supported in Chrome. So this
   // function is restricted for only preceding text.
   // TODO(nona): Support full spec delete surrounding text.
   virtual bool DeleteSurroundingText(int context_id,
                                      int offset,
                                      size_t number_of_chars,
                                      std::string* error) = 0;
 
   // Hides the input view window (from API call).
   virtual void HideInputView() = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_INTERFACE_H_