SPDY flow control: add support for receive window size

BUG=48100
TEST=net_unittests

Review URL: http://codereview.chromium.org/3137014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57453 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 12 insertions, 1 deletions

diff --git a/net/spdy/spdy_session.h b/net/spdy/spdy_session.h
index 480f9ad..d200e6c 100644
--- a/net/spdy/spdy_session.h
+++ b/net/spdy/spdy_session.h
@@ -141,7 +141,12 @@ class SpdySession : public base::RefCounted<SpdySession>,
   static bool SSLMode() { return use_ssl_; }
 
   // Enable or disable flow control.
-  static void SetFlowControl(bool enable) { use_flow_control_ = enable; }
+  static void set_flow_control(bool enable) { use_flow_control_ = enable; }
+  static bool flow_control() { return use_flow_control_; }
+
+  // Send WINDOW_UPDATE frame, called by a stream whenever receive window
+  // size is increased.
+  void SendWindowUpdate(spdy::SpdyStreamId stream_id, int delta_window_size);
 
   // If session is closed, no new streams/transactions should be created.
   bool IsClosed() const { return state_ == CLOSED; }
@@ -366,6 +371,12 @@ class SpdySession : public base::RefCounted<SpdySession>,
   // initial send window size.
   int initial_send_window_size_;
 
+  // Initial receive window size for the session; there are plans to add a
+  // command line switch that would cause a SETTINGS frame with window size
+  // announcement to be sent on startup; newly created streams will use
+  // this value for the initial receive window size.
+  int initial_recv_window_size_;
+
   BoundNetLog net_log_;
 
   static bool use_ssl_;