Add methods for setting socket buffers to the Socket

net/socket/socket_test_util.h

Index: net/socket/socket_test_util.h
===================================================================
--- net/socket/socket_test_util.h	(revision 25133)
+++ net/socket/socket_test_util.h	(working copy)
@@ -247,6 +247,8 @@
                    net::CompletionCallback* callback) = 0;
   virtual int Write(net::IOBuffer* buf, int buf_len,
                     net::CompletionCallback* callback) = 0;
+  virtual bool SetReceiveBufferSize(int32 size) { return true; };
+  virtual bool SetSendBufferSize(int32 size) { return true; };
 
 #if defined(OS_LINUX)
   virtual int GetPeerName(struct sockaddr *name, socklen_t *namelen);