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

components/cronet/android/cronet_bidirectional_stream_adapter.cc

Index: components/cronet/android/cronet_bidirectional_stream_adapter.cc
diff --git a/components/cronet/android/cronet_bidirectional_stream_adapter.cc b/components/cronet/android/cronet_bidirectional_stream_adapter.cc
index 60629be19c64055da7aed88b4ffa14f4b2074a02..843c94ec7fbe1dfc7f0c31a48e85b4a0c0802a9b 100644
--- a/components/cronet/android/cronet_bidirectional_stream_adapter.cc
+++ b/components/cronet/android/cronet_bidirectional_stream_adapter.cc
@@ -71,7 +71,7 @@ static jlong CreateBidirectionalStream(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& jbidi_stream,
     jlong jurl_request_context_adapter,
-    jboolean jdisable_auto_flush) {
+    jboolean jdelay_headers_until_next_send_data) {
   CronetURLRequestContextAdapter* context_adapter =
       reinterpret_cast<CronetURLRequestContextAdapter*>(
           jurl_request_context_adapter);
@@ -79,7 +79,7 @@ static jlong CreateBidirectionalStream(
 
   CronetBidirectionalStreamAdapter* adapter =
       new CronetBidirectionalStreamAdapter(context_adapter, env, jbidi_stream,
-                                           jdisable_auto_flush);
+                                           jdelay_headers_until_next_send_data);
 
   return reinterpret_cast<jlong>(adapter);
 }
@@ -93,10 +93,10 @@ CronetBidirectionalStreamAdapter::CronetBidirectionalStreamAdapter(
     CronetURLRequestContextAdapter* context,
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& jbidi_stream,
-    bool disable_auto_flush)
+    bool delay_headers_until_next_send_data)
     : context_(context),
       owner_(env, jbidi_stream),
-      disable_auto_flush_(disable_auto_flush),
+      delay_headers_until_next_send_data_(delay_headers_until_next_send_data),
       stream_failed_(false) {}
 
 CronetBidirectionalStreamAdapter::~CronetBidirectionalStreamAdapter() {
@@ -321,7 +321,7 @@ void CronetBidirectionalStreamAdapter::StartOnNetworkThread(
       std::move(request_info), context_->GetURLRequestContext()
                                    ->http_transaction_factory()
                                    ->GetSession(),
-      disable_auto_flush_, this));
+      delay_headers_until_next_send_data_, this));
 }
 
 void CronetBidirectionalStreamAdapter::ReadDataOnNetworkThread(