Add DCHECK in Job constructor.

Bug: 819101
Change-Id: I0ab13ced7aafc632402fd1eb3ad9b22c57fbf425
Reviewed-on: https://chromium-review.googlesource.com/990492
Commit-Queue: Bence Béky <bnc@chromium.org>
Reviewed-by: Ryan Hamilton <rch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#547707}

net/http/http_stream_factory_impl_job.cc

@@ -257,6 +257,11 @@ HttpStreamFactoryImpl::Job::Job(Delegate* delegate,
   if (job_type_ == PRECONNECT || is_websocket_) {
     DCHECK(request_info_.socket_tag == SocketTag());
   }
+  if (is_websocket_) {
+    DCHECK(origin_url_.SchemeIsWSOrWSS());
+  } else {
+    DCHECK(!origin_url_.SchemeIsWSOrWSS());
+  }
 }
 
 HttpStreamFactoryImpl::Job::~Job() {