Fix Netlink message length.

BUG=163902


Review URL: https://chromiumcodereview.appspot.com/11428141

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170812 0039d316-1c4b-4281-b951-d872f2087c98

net/base/address_tracker_linux.cc

@@ -116,7 +116,7 @@ void AddressTrackerLinux::Init() {
     struct rtgenmsg msg;
   } request = {};
 
-  request.header.nlmsg_len = NLMSG_LENGTH(sizeof(request));
+  request.header.nlmsg_len = NLMSG_LENGTH(sizeof(request.msg));
   request.header.nlmsg_type = RTM_GETADDR;
   request.header.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
   request.header.nlmsg_pid = getpid();