Cleanup: Remove unneeded base/file_util.h includes in base.

webkit/plugins/ppapi/quota_file_io_unittest.cc

 // Copyright (c) 2011 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 <deque>
 #include <limits>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
+#include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/platform_file.h"
 #include "webkit/plugins/ppapi/mock_plugin_delegate.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 #include "webkit/plugins/ppapi/ppapi_unittest.h"
 #include "webkit/plugins/ppapi/quota_file_io.h"
 
 using base::MessageLoopProxy;
@@ skipping 469 matching lines @@
   pop_result();
 
   EXPECT_EQ(22 - 15, quota_plugin_delegate()->available_space());
   EXPECT_EQ(15, GetPlatformFileSize());
   ReadPlatformFile(&read_buffer);
   EXPECT_EQ("123355559012345", read_buffer);
 }
 
 }  // namespace ppapi
 }  // namespace webkit