-Werror=reorder build error on Mozilla Try
When pushing tor-browser-31.6.0esr-4.5-1 to Mozilla Try, after fixing #15921 (moved), the build fails with the following error:
../../../dist/include/mozilla/net/HttpBaseChannel.h:339:11: error: 'mozilla::net::HttpBaseChannel::mRedirectCount' will be initialized after [-Werror=reorder]
../../../dist/include/mozilla/net/HttpBaseChannel.h:327:20: error: 'nsCOMPtr<nsIURI> mozilla::net::HttpBaseChannel::mProxyURI' [-Werror=reorder]
/builds/slave/try-lx-d-000000000000000000000/build/src/netwerk/protocol/http/HttpBaseChannel.cpp:39:1: error: when initialized here [-Werror=reorder]
https://treeherder.mozilla.org/#/jobs?repo=try&revision=694420702f16
I am attaching a patch to fix the issue.