Remove the dependency to ws2_32.dll from talk_base::ThreadManager and talk_base::Thread.

third_party/libjingle/overrides/talk/base/win32.h

Index: third_party/libjingle/overrides/talk/base/win32.h
===================================================================
--- third_party/libjingle/overrides/talk/base/win32.h	(revision 124320)
+++ third_party/libjingle/overrides/talk/base/win32.h	(working copy)
@@ -47,11 +47,20 @@
 
 #undef SetPort
 
+#include <stdlib.h>
 #include <string>
 
 #include "talk/base/stringutils.h"
 #include "talk/base/basictypes.h"
 
+// This is to remove the dependency to ws2_32.dll especially for chrome,
+// where we don't load the ws2_32.dll in the render process.
+// This is correct only on little-endian machines.
+#define ntohl(x) _byteswap_ulong(x)
+#define ntohs(x) _byteswap_ushort(x)
+#define htonl(x) _byteswap_ulong(x)
+#define htons(x) _byteswap_ushort(x)
+
 namespace talk_base {
 
 const char* win32_inet_ntop(int af, const void *src, char* dst, socklen_t size);