[Cronet] Make delaying sending request headers explicit in bidirectional stream

net/http/bidirectional_stream.cc

Index: net/http/bidirectional_stream.cc
diff --git a/net/http/bidirectional_stream.cc b/net/http/bidirectional_stream.cc
index 8b83c1e93515f06efaa4db3b5aaca903b35ec1ca..778b88e376dce5dd03b430a400402609772c11f8 100644
--- a/net/http/bidirectional_stream.cc
+++ b/net/http/bidirectional_stream.cc
@@ -66,25 +66,25 @@ BidirectionalStream::Delegate::~Delegate() {}
 BidirectionalStream::BidirectionalStream(
     std::unique_ptr<BidirectionalStreamRequestInfo> request_info,
     HttpNetworkSession* session,
-    bool disable_auto_flush,
+    bool delay_headers_until_next_send_data,
     Delegate* delegate)
     : BidirectionalStream(std::move(request_info),
                           session,
-                          disable_auto_flush,
+                          delay_headers_until_next_send_data,
                           delegate,
                           base::WrapUnique(new base::Timer(false, false))) {}
 
 BidirectionalStream::BidirectionalStream(
     std::unique_ptr<BidirectionalStreamRequestInfo> request_info,
     HttpNetworkSession* session,
-    bool disable_auto_flush,
+    bool delay_headers_until_next_send_data,
     Delegate* delegate,
     std::unique_ptr<base::Timer> timer)
     : request_info_(std::move(request_info)),
       net_log_(BoundNetLog::Make(session->net_log(),
                                  NetLog::SOURCE_BIDIRECTIONAL_STREAM)),
       session_(session),
-      disable_auto_flush_(disable_auto_flush),
+      delay_headers_until_next_send_data_(delay_headers_until_next_send_data),
       delegate_(delegate),
       timer_(std::move(timer)) {
   DCHECK(delegate_);
@@ -278,7 +278,8 @@ void BidirectionalStream::OnBidirectionalStreamImplReady(
 
   stream_request_.reset();
   stream_impl_.reset(stream);
-  stream_impl_->Start(request_info_.get(), net_log_, disable_auto_flush_, this,
+  stream_impl_->Start(request_info_.get(), net_log_,
+                      delay_headers_until_next_send_data_, this,
                       std::move(timer_));
 }