POSIX: re-enable strict aliasing

net/tools/quic/quic_socket_utils.cc

Index: net/tools/quic/quic_socket_utils.cc
diff --git a/net/tools/quic/quic_socket_utils.cc b/net/tools/quic/quic_socket_utils.cc
index 4d7d36007601b7d8576b2e5287cdc8634bd38e34..99d35f36f19d012715ffd9dc4dd9b7e15e825b4e 100644
--- a/net/tools/quic/quic_socket_utils.cc
+++ b/net/tools/quic/quic_socket_utils.cc
@@ -43,14 +43,14 @@ IPAddressNumber QuicSocketUtils::GetAddressFromMsghdr(struct msghdr *hdr) {
 
 // static
 bool QuicSocketUtils::GetOverflowFromMsghdr(struct msghdr *hdr,
-                                      int *dropped_packets) {
+                                            int *dropped_packets) {
   if (hdr->msg_controllen > 0) {
     struct cmsghdr *cmsg;
     for (cmsg = CMSG_FIRSTHDR(hdr);
          cmsg != NULL;
          cmsg = CMSG_NXTHDR(hdr, cmsg)) {
       if (cmsg->cmsg_type == SO_RXQ_OVFL) {
-        *dropped_packets = *(reinterpret_cast<int*>CMSG_DATA(cmsg));
+        memcpy(dropped_packets, CMSG_DATA(cmsg), sizeof(*dropped_packets));
         return true;
       }
     }