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

content/browser/renderer_host/pepper/quota_reservation_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 "content/browser/renderer_host/pepper/quota_reservation.h"
 
 #include <stdint.h>
 
 #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/quota_reservation.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using storage::QuotaReservationManager;
 
 namespace content {
 
@@ skipping 214 matching lines @@
   EXPECT_EQ(amount, reserved_quota);
   EXPECT_EQ(2U, file_growths.size());
   EXPECT_EQ(file1_size, file_growths[kFile1ID].max_written_offset);
   EXPECT_EQ(file3_size, file_growths[kFile3ID].max_written_offset);
 
   test->CloseFile(kFile1ID, ppapi::FileGrowth(file1_size, 0));
   test->CloseFile(kFile3ID, ppapi::FileGrowth(file3_size, 0));
 }
 
 }  // namespace content