Fix IWYU violators that don't include scoped_ptr.h in Windows build.

chrome/browser/ui/input_method/input_method_engine_base.h

 // Copyright 2016 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_UI_INPUT_METHOD_INPUT_METHOD_ENGINE_BASE_H_
 #define CHROME_BROWSER_UI_INPUT_METHOD_INPUT_METHOD_ENGINE_BASE_H_
 
 #include <map>
 #include <string>
 #include <vector>
+#include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "ui/base/ime/chromeos/input_method_descriptor.h"
 #include "ui/base/ime/composition_text.h"
 #include "ui/base/ime/ime_engine_handler_interface.h"
 #include "url/gurl.h"
 
 class Profile;
 
 namespace ui {
 struct CompositionText;
@@ skipping 211 matching lines @@
   std::string text_;
 
   // Indicates whether the IME extension is currently handling a physical key
   // event. This is used in CommitText/UpdateCompositionText/etc.
   bool handling_key_event_;
 };
 
 }  // namespace input_method
 
 #endif  // CHROME_BROWSER_UI_INPUT_METHOD_INPUT_METHOD_ENGINE_BASE_H_