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

content/browser/quota/quota_reservation_manager_unittest.cc

 // 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.
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/location.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "storage/browser/fileapi/quota/open_file_handle.h"
 #include "storage/browser/fileapi/quota/quota_reservation.h"
 #include "storage/browser/fileapi/quota/quota_reservation_manager.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using storage::kFileSystemTypeTemporary;
 using storage::OpenFileHandle;
@@ skipping 335 matching lines @@
 
   EXPECT_EQ(kInitialFileSize + 10, GetFileSize(file_path()));
   EXPECT_EQ(kInitialFileSize + 15 + 20, fake_backend()->on_memory_usage());
   EXPECT_EQ(kInitialFileSize + 10, fake_backend()->on_disk_usage());
 
   reservation2 = NULL;
   EXPECT_EQ(kInitialFileSize + 10, fake_backend()->on_memory_usage());
 }
 
 }  // namespace content