s/SYN_STREAM/HEADERS/ in frame types, method names, comments.

net/spdy/spdy_stream.h

Index: net/spdy/spdy_stream.h
diff --git a/net/spdy/spdy_stream.h b/net/spdy/spdy_stream.h
index d96e5e910895eabff0d7a0d86706e002a034a7f0..912def1219ccb047e16ad7dc1c0a850539ce9cc6 100644
--- a/net/spdy/spdy_stream.h
+++ b/net/spdy/spdy_stream.h
@@ -291,10 +291,9 @@ class NET_EXPORT_PRIVATE SpdyStream {
   base::Time GetRequestTime() const;
   void SetRequestTime(base::Time t);
 
-  // Called at most once by the SpdySession when the initial response
-  // headers have been received for this stream, i.e., a SYN_REPLY (or
-  // SYN_STREAM for push streams) frame has been received. Returns a status
-  // code; if it is an error, the stream was closed by this function.
+  // Called at most once by the SpdySession when the initial response headers
+  // have been received for this stream. Returns a status code; if it is an
+  // error, the stream was closed by this function.
   int OnInitialResponseHeadersReceived(const SpdyHeaderBlock& response_headers,
                                        base::Time response_time,
                                        base::TimeTicks recv_first_byte_time);
@@ -333,7 +332,7 @@ class NET_EXPORT_PRIVATE SpdyStream {
   // of the HEADERS or PUSH_PROMISE frame and subsequent CONTINUATION frames.
   void OnFrameWriteComplete(SpdyFrameType frame_type, size_t frame_size);
 
-  // SYN_STREAM-specific write handler invoked by OnFrameWriteComplete().
+  // HEADERS-specific write handler invoked by OnFrameWriteComplete().
   int OnRequestHeadersSent();
 
   // DATA-specific write handler invoked by OnFrameWriteComplete().
@@ -432,14 +431,13 @@ class NET_EXPORT_PRIVATE SpdyStream {
   const GURL& GetUrlFromHeaders() const { return url_from_header_block_; }
 
  private:
-  class SynStreamBufferProducer;
-  class HeaderBufferProducer;
+  class HeadersBufferProducer;
 
   // SpdyStream states and transitions are modeled
   // on the HTTP/2 stream state machine. All states and transitions
   // are modeled, with the exceptions of RESERVED_LOCAL (the client
   // cannot initate push streams), and the transition to OPEN due to
-  // a remote SYN_STREAM (the client can only initate streams).
+  // a remote HEADERS (the client can only initate streams).
   enum State {
     STATE_IDLE,
     STATE_OPEN,
@@ -463,9 +461,9 @@ class NET_EXPORT_PRIVATE SpdyStream {
   // to have occurred, driving the state machine forward.
   void PushedStreamReplay();
 
-  // Produces the SYN_STREAM frame for the stream. The stream must
+  // Produces the HEADERS frame for the stream. The stream must
   // already be activated.
-  std::unique_ptr<SpdySerializedFrame> ProduceSynStreamFrame();
+  std::unique_ptr<SpdySerializedFrame> ProduceHeadersFrame();
 
   // Queues the send for next frame of the remaining data in
   // |pending_send_data_|. Must be called only when