Simplify InputMethodWin initialization.

ui/base/ime/win/imm32_manager.h

Index: ui/base/ime/win/imm32_manager.h
diff --git a/ui/base/ime/win/imm32_manager.h b/ui/base/ime/win/imm32_manager.h
index a1e473cdb25e85408dae2c1f7518042b23176373..0665919aa15105ef361f8ddafe084d23ea3eb227 100644
--- a/ui/base/ime/win/imm32_manager.h
+++ b/ui/base/ime/win/imm32_manager.h
@@ -83,12 +83,7 @@ class UI_BASE_IME_EXPORT IMM32Manager {
   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
@@ -281,13 +276,6 @@ class UI_BASE_IME_EXPORT IMM32Manager {
   // 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;