Add Finch experiment for selectively bypassing proxies.

net/http/http_stream_factory_impl_job.cc

Index: net/http/http_stream_factory_impl_job.cc
diff --git a/net/http/http_stream_factory_impl_job.cc b/net/http/http_stream_factory_impl_job.cc
index 79a95361d43f001ea33018d61eb1cb3f104e4c09..d2d51c1f8336abb2b6fafe3dd4b763c5a34cf0f1 100644
--- a/net/http/http_stream_factory_impl_job.cc
+++ b/net/http/http_stream_factory_impl_job.cc
@@ -652,6 +652,7 @@ int HttpStreamFactoryImpl::Job::DoStart() {
 
 int HttpStreamFactoryImpl::Job::DoResolveProxy() {
   DCHECK(!pac_request_);
+  DCHECK(session_);
 
   next_state_ = STATE_RESOLVE_PROXY_COMPLETE;
 
@@ -661,7 +662,8 @@ int HttpStreamFactoryImpl::Job::DoResolveProxy() {
   }
 
   return session_->proxy_service()->ResolveProxy(
-      request_info_.url, &proxy_info_, io_callback_, &pac_request_, net_log_);
+      request_info_.url, request_info_.load_flags, &proxy_info_, io_callback_,
+      &pac_request_, session_->network_delegate(), net_log_);
 }
 
 int HttpStreamFactoryImpl::Job::DoResolveProxyComplete(int result) {