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

net/http/bidirectional_stream.h

Index: net/http/bidirectional_stream.h
diff --git a/net/http/bidirectional_stream.h b/net/http/bidirectional_stream.h
index 86b3fff2d77180b8bde33c1a2f4df84b7aab47db..d91a6452774152d7381b3fed8eb5c3be13e608b6 100644
--- a/net/http/bidirectional_stream.h
+++ b/net/http/bidirectional_stream.h
@@ -97,7 +97,7 @@ class NET_EXPORT BidirectionalStream
   BidirectionalStream(
       std::unique_ptr<BidirectionalStreamRequestInfo> request_info,
       HttpNetworkSession* session,
-      bool disable_auto_flush,
+      bool delay_headers_until_next_send_data,

[mef, 2016/05/23 14:57:26]

Um, shouldn't |disable_auto_flush| still be a thing?

       Delegate* delegate);
 
   // Constructor that accepts a Timer, which can be used in tests to control
@@ -105,7 +105,7 @@ class NET_EXPORT 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);
 
@@ -204,7 +204,7 @@ class NET_EXPORT BidirectionalStream
 
   HttpNetworkSession* session_;
 
-  bool disable_auto_flush_;
+  bool delay_headers_until_next_send_data_;
   Delegate* const delegate_;
 
   // Timer used to buffer data received in short time-spans and send a single