Simplify InputMethodWin initialization.

ui/base/ime/input_method_base_unittest.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/input_method_base.h"
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 130 matching lines @@
   bool OnUntranslatedIMEMessage(
       const base::NativeEvent& event,
       InputMethod::NativeEventResult* result) override {
     return false;
   }
   bool DispatchKeyEvent(const ui::KeyEvent&) override { return false; }
   void OnCaretBoundsChanged(const TextInputClient* client) override {}
   void CancelComposition(const TextInputClient* client) override {}
   void OnInputLocaleChanged() override {}
   std::string GetInputLocale() override { return ""; }
-  bool IsActive() override { return false; }
   bool IsCandidatePopupOpen() const override { return false; }
   // Overriden from InputMethodBase.
   void OnWillChangeFocusedClient(TextInputClient* focused_before,
                                  TextInputClient* focused) override {
     verifier_->OnWillChangeFocusedClient(focused_before, focused);
   }
 
   void OnDidChangeFocusedClient(TextInputClient* focused_before,
                                 TextInputClient* focused) override {
     verifier_->OnDidChangeFocusedClient(focused_before, focused);
@@ skipping 133 matching lines @@
     input_method.OnFocus();
     verifier.ExpectClientChange(&text_input_client, NULL);
     input_method.DetachTextInputClient(&text_input_client);
     EXPECT_EQ(NULL, input_method.GetTextInputClient());
     verifier.Verify();
   }
 }
 
 }  // namespace
 }  // namespace ui