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

content/browser/fileapi/sandbox_origin_database_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 <stddef.h>
 
 #include <algorithm>
 #include <functional>
 #include <limits>
 #include <string>
 #include <vector>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "content/browser/fileapi/sandbox_database_test_helper.h"
 #include "storage/browser/fileapi/sandbox_origin_database.h"
 #include "storage/common/fileapi/file_system_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/leveldatabase/src/db/filename.h"
 #include "third_party/leveldatabase/src/include/leveldb/db.h"
 
 using storage::SandboxOriginDatabase;
 
@@ skipping 271 matching lines @@
 
     const std::string kOrigin2("piyo.example.org");
     EXPECT_FALSE(database->HasOriginPath(kOrigin2));
     EXPECT_TRUE(database->GetPathForOrigin(kOrigin2, &path));
     EXPECT_FALSE(path.empty());
     EXPECT_TRUE(database->HasOriginPath(kOrigin2));
   }
 }
 
 }  // namespace content