Remove SpdyPingControlFrame struct. Useful for SPDY 4 development.

net/spdy/buffered_spdy_framer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/spdy/buffered_spdy_framer.h"
 
 #include "base/logging.h"
 
 namespace net {
 
@@ skipping 230 matching lines @@
     SpdyStreamId stream_id,
     SpdyRstStreamStatus status) const {
   return spdy_framer_.CreateRstStream(stream_id, status);
 }
 
 SpdySettingsControlFrame* BufferedSpdyFramer::CreateSettings(
     const SettingsMap& values) const {
   return spdy_framer_.CreateSettings(values);
 }
 
-SpdyPingControlFrame* BufferedSpdyFramer::CreatePingFrame(
+SpdyFrame* BufferedSpdyFramer::CreatePingFrame(
     uint32 unique_id) const {
   return spdy_framer_.CreatePingFrame(unique_id);
 }
 
 SpdyFrame* BufferedSpdyFramer::CreateGoAway(
     SpdyStreamId last_accepted_stream_id,
     SpdyGoAwayStatus status) const {
   return spdy_framer_.CreateGoAway(last_accepted_stream_id, status);
 }
 
@@ skipping 33 matching lines @@
 
 void BufferedSpdyFramer::InitHeaderStreaming(SpdyStreamId stream_id) {
   memset(header_buffer_, 0, kHeaderBufferSize);
   header_buffer_used_ = 0;
   header_buffer_valid_ = true;
   header_stream_id_ = stream_id;
   DCHECK_NE(header_stream_id_, SpdyFramer::kInvalidStream);
 }
 
 }  // namespace net