Simplify InputMethodWin initialization.

ui/base/ime/win/imm32_manager.cc

 // 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.
 
 #include "ui/base/ime/win/imm32_manager.h"
 
-#include <msctf.h>
-
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/scoped_comptr.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/ime/composition_text.h"
 
 // "imm32.lib" is required by IMM32 APIs used in this file.
@@ skipping 92 matching lines @@
       return false;
   }
 }
 
 }  // namespace
 
 namespace ui {
 
 IMM32Manager::IMM32Manager()
     : is_composing_(false),
-      ime_status_(false),
       input_language_id_(LANG_USER_DEFAULT),
       system_caret_(false),
       caret_rect_(-1, -1, 0, 0),
       use_composition_window_(false) {
 }
 
 IMM32Manager::~IMM32Manager() {
 }
 
-bool IMM32Manager::SetInputLanguage() {
+void IMM32Manager::SetInputLanguage() {
   // Retrieve the current keyboard layout from Windows and determine whether
   // or not the current input context has IMEs.
   // Also save its input language for language-specific operations required
   // while composing a text.
   HKL keyboard_layout = ::GetKeyboardLayout(0);
   input_language_id_ =
       static_cast<LANGID>(reinterpret_cast<uintptr_t>(keyboard_layout));
-
-  // Check TSF Input Processor first.
-  // If the active profile is TSF INPUTPROCESSOR, this is IME.
-  base::win::ScopedComPtr<ITfInputProcessorProfileMgr> prof_mgr;
-  TF_INPUTPROCESSORPROFILE prof;
-  if (SUCCEEDED(prof_mgr.CreateInstance(CLSID_TF_InputProcessorProfiles)) &&
-      SUCCEEDED(prof_mgr->GetActiveProfile(GUID_TFCAT_TIP_KEYBOARD, &prof)) &&
-      prof.hkl == NULL &&
-      prof.dwProfileType == TF_PROFILETYPE_INPUTPROCESSOR) {
-      ime_status_ = true;
-  } else {
-    // If the curent language is not using TSF, check IMM32 based IMEs.
-    // As ImmIsIME always returns non-0 value on Vista+, use ImmGetIMEFileName
-    // instead to check if this HKL has any associated IME file.
-    ime_status_ = (ImmGetIMEFileName(keyboard_layout, NULL, 0) != 0);
-  }
-
-  return ime_status_;
 }
 
 void IMM32Manager::CreateImeWindow(HWND window_handle) {
   // When a user disables TSF (Text Service Framework) and CUAS (Cicero
   // Unaware Application Support), Chinese IMEs somehow ignore function calls
   // to ::ImmSetCandidateWindow(), i.e. they do not move their candidate
   // window to the position given as its parameters, and use the position
   // of the current system caret instead, i.e. it uses ::GetCaretPos() to
   // retrieve the position of their IME candidate window.
   // Therefore, we create a temporary system caret for Chinese IMEs and use
@@ skipping 470 matching lines @@
                              | IME_CMODE_KATAKANA
                              | IME_CMODE_FULLSHAPE);
       break;
     default:
       *open = FALSE;
       break;
   }
 }
 
 }  // namespace ui