Fix win32 header include order in rtp_utility.h.

webrtc/modules/rtp_rtcp/source/rtp_utility.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "webrtc/modules/rtp_rtcp/source/rtp_utility.h"
 
 #include <assert.h>
 #include <math.h>  // ceil
 #include <string.h>  // memcpy
 
 #if defined(_WIN32)
 // Order for these headers are important
-#include <Windows.h>  // FILETIME
-
-#include <WinSock.h>  // timeval
-
+#include <winsock2.h>  // timeval
+#include <windows.h>  // FILETIME
 #include <MMSystem.h>  // timeGetTime
 #elif ((defined WEBRTC_LINUX) || (defined WEBRTC_MAC))
 #include <sys/time.h>  // gettimeofday
 #include <time.h>
 #endif
 #if (defined(_DEBUG) && defined(_WIN32) && (_MSC_VER >= 1400))
 #include <stdio.h>
 #endif
 
 #include "webrtc/modules/rtp_rtcp/source/byte_io.h"
@@ skipping 466 matching lines @@
       return num_zero_bytes;
     }
     ptr++;
     num_zero_bytes++;
   }
   return num_zero_bytes;
 }
 }  // namespace RtpUtility
 
 }  // namespace webrtc