Move common_param_traits and webkit_param_traits to content/public/common.

content/common/file_utilities_messages.h

 // 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.
 
 // Multiply-included message file, so no include guard.
 
 #include "base/time.h"
-#include "content/common/common_param_traits.h"
+#include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
 #include "ipc/ipc_platform_file.h"
 
 #define IPC_MESSAGE_START FileUtilitiesMsgStart
 
 // File utilities messages sent from the renderer to the browser.
 
 // Get file size in bytes. Set result to -1 if failed to get the file size.
 IPC_SYNC_MESSAGE_CONTROL1_1(FileUtilitiesMsg_GetFileSize,
                             FilePath /* path */,
                             int64 /* result */)
 
 // Get file modification time in seconds. Set result to 0 if failed to get the
 // file modification time.
 IPC_SYNC_MESSAGE_CONTROL1_1(FileUtilitiesMsg_GetFileModificationTime,
                             FilePath /* path */,
                             base::Time /* result */)
 
 // Open the file.
 IPC_SYNC_MESSAGE_CONTROL2_1(FileUtilitiesMsg_OpenFile,
                             FilePath /* path */,
                             int /* mode */,
                             IPC::PlatformFileForTransit /* result */)