Part of QUIC v39 change: 1) do not ack acks. 2) Send a WINDOW_UPDATE frame every 20 packets which d…

net/quic/core/quic_flow_controller.h

Index: net/quic/core/quic_flow_controller.h
diff --git a/net/quic/core/quic_flow_controller.h b/net/quic/core/quic_flow_controller.h
index 97c6fdaf03c5f83af4ccc5d40bfd3889b659bd59..f183741ada31f2c0f0aaedab89e344e30b4099d6 100644
--- a/net/quic/core/quic_flow_controller.h
+++ b/net/quic/core/quic_flow_controller.h
@@ -83,6 +83,9 @@ class QUIC_EXPORT_PRIVATE QuicFlowController
   // Returns true if flow control receive limits have been violated by the peer.
   bool FlowControlViolation();
 
+  // Inform the peer of new receive window.
+  void SendWindowUpdate();
+
   QuicByteCount bytes_consumed() const { return bytes_consumed_; }
 
   QuicStreamOffset highest_received_byte_offset() const {
@@ -113,7 +116,8 @@ class QUIC_EXPORT_PRIVATE QuicFlowController
   void MaybeIncreaseMaxWindowSize();
 
   // Updates the current offset and sends a window update frame.
-  void SendWindowUpdate(QuicStreamOffset available_window);
+  void UpdateReceiveWindowOffsetAndSendWindowUpdate(
+      QuicStreamOffset available_window);
 
   // Double the window size as long as we haven't hit the max window size.
   void IncreaseWindowSize();