Add SyncSocket::ReceiveWithTimeout() and SyncSocket unit tests.

base/sync_socket_nacl.cc

Index: base/sync_socket_nacl.cc
diff --git a/base/sync_socket_nacl.cc b/base/sync_socket_nacl.cc
index 7bab8840c0170a1247cf6bc1d383047b3447639e..fce6d56a6beb0096520f4c4aef3b879ce8e957e7 100644
--- a/base/sync_socket_nacl.cc
+++ b/base/sync_socket_nacl.cc
@@ -45,6 +45,10 @@ size_t SyncSocket::Receive(void* buffer, size_t length) {
   return read(handle_, buffer, length);
 }
 
+size_t SyncSocket::ReceiveWithTimeout(void* buffer, size_t length, TimeDelta) {
+  return -1;

[jar (doing other things), 2013/10/14 15:31:07]

Shouldn't this be return 0?

[DaleCurtis, 2013/10/14 19:25:13]

I just copied the pattern, but probably all of these should return 0 since
they're size_t and also call NOTIMPLEMENTED().  I've changed them all.

+}
+
 size_t SyncSocket::Peek() {
   return -1;
 }