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

extensions/browser/guest_view/web_view/web_view_find_helper.h

 // Copyright 2014 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 EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_FIND_HELPER_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_FIND_HELPER_H_
 
 #include <map>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "content/public/browser/web_contents.h"
 #include "third_party/WebKit/public/web/WebFindOptions.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace extensions {
 class WebViewInternalFindFunction;
 class WebViewGuest;
 
@@ skipping 161 matching lines @@
   // function can be called when its find results are available.
   using FindInfoMap = std::map<int, scoped_refptr<FindInfo>>;
   FindInfoMap find_info_map_;
 
   DISALLOW_COPY_AND_ASSIGN(WebViewFindHelper);
 };
 
 } // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_FIND_HELPER_H_