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

content/test/dwrite_font_fake_sender_win.h

 // Copyright (c) 2015 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 CONTENT_TEST_DWRITE_FONT_FAKE_SENDER_WIN_H_
 #define CONTENT_TEST_DWRITE_FONT_FAKE_SENDER_WIN_H_
 
 #include <stddef.h>
 #include <stdint.h>
 #include <wrl.h>
 
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_sender.h"
 
 namespace content {
 
 class FakeFontCollection;
 
 // Creates a new FakeFontCollection, seeded with some basic data, and returns a
 // Sender that can be used to interact with the collection.
@@ skipping 126 matching lines @@
 
   std::vector<FakeFont> fonts_;
   std::vector<std::unique_ptr<IPC::Message>> messages_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeFontCollection);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_DWRITE_FONT_FAKE_SENDER_WIN_H_