Simplify InputMethodWin initialization.

ui/base/ime/win/imm32_manager.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 UI_BASE_IME_WIN_IMM32_MANAGER_H
 #define UI_BASE_IME_WIN_IMM32_MANAGER_H
 
 #include <windows.h>
 
 #include <string>
@@ skipping 65 matching lines @@
 //   LANGUAGES BUT ALSO USED ON THE INPUT CONTEXTS OF ALL LANGUAGES.
 class UI_BASE_IME_EXPORT IMM32Manager {
  public:
   IMM32Manager();
   virtual ~IMM32Manager();
 
   // Retrieves whether or not there is an ongoing composition.
   bool is_composing() const { return is_composing_; }
 
   // Retrieves the input language from Windows and update it.
-  // Return values
-  //   * true
-  //     The given input language has IMEs.
-  //   * false
-  //     The given input language does not have IMEs.
-  bool SetInputLanguage();
+  void SetInputLanguage();
 
   // Creates the IME windows, and allocate required resources for them.
   // Parameters
   //   * window_handle [in] (HWND)
   //     Represents the window handle of the caller.
   void CreateImeWindow(HWND window_handle);
 
   // Updates the style of the IME windows.
   // Parameters
   //   * window_handle [in] (HWND)
@@ skipping 172 matching lines @@
   bool GetString(HIMC imm_context,
                  WPARAM lparam,
                  int type,
                  base::string16* result);
 
  private:
   // Represents whether or not there is an ongoing composition in a browser
   // process, i.e. whether or not a browser process is composing a text.
   bool is_composing_;
 
-  // This value represents whether or not the current input context has IMEs.
-  // The following table shows the list of IME status:
-  //   Value  Description
-  //   false  The current input language does not have IMEs.
-  //   true   The current input language has IMEs.
-  bool ime_status_;
-
   // The current input Language ID retrieved from Windows, which consists of:
   //   * Primary Language ID (bit 0 to bit 9), which shows a natunal language
   //     (English, Korean, Chinese, Japanese, etc.) and;
   //   * Sub-Language ID (bit 10 to bit 15), which shows a geometrical region
   //     the language is spoken (For English, United States, United Kingdom,
   //     Australia, Canada, etc.)
   // The following list enumerates some examples for the Language ID:
   //   * "en-US" (0x0409)
   //     MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US);
   //   * "ko-KR" (0x0412)
@@ skipping 20 matching lines @@
 
   // Indicates whether or not we want IME to render composition text.
   bool use_composition_window_;
 
   DISALLOW_COPY_AND_ASSIGN(IMM32Manager);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_WIN_IMM32_MANAGER_H