Added a flow control blocked notification message.

net/spdy/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.
 
 // TODO(rtenhove) clean up frame buffer size calculations so that we aren't
 // constantly adding and subtracting header sizes; this is ugly and error-
 // prone.
 
 #include "net/spdy/spdy_framer.h"
 
@@ skipping 1864 matching lines @@
     }
     SettingsFlagsAndId flags_and_id(setting_flags, it->first);
     uint32 id_and_flags_wire = flags_and_id.GetWireFormat(protocol_version());
     builder.WriteBytes(&id_and_flags_wire, 4);
     builder.WriteUInt32(it->second.value);
   }
   DCHECK_EQ(size, builder.length());
   return builder.take();
 }
 
+SpdyFrame* SpdyFramer::CreateBlocked(SpdyStreamId stream_id) {
+  SpdyBlockedIR blocked_ir(stream_id);
+  return SerializeBlocked(blocked_ir);
+}
+
 SpdyFrame* SpdyFramer::SerializeBlocked(const SpdyBlockedIR& blocked) const {
   DCHECK_LE(4, protocol_version());
   SpdyFrameBuilder builder(GetBlockedSize());
   builder.WriteFramePrefix(*this, BLOCKED, kNoFlags, blocked.stream_id());
   return builder.take();
 }
 
 SpdyFrame* SpdyFramer::CreatePingFrame(uint32 unique_id) const {
   SpdyPingIR ping(unique_id);
   return SerializePing(ping);
@@ skipping 504 matching lines @@
   builder->Seek(compressed_size);
   builder->RewriteLength(*this);
 
   pre_compress_bytes.Add(uncompressed_len);
   post_compress_bytes.Add(compressed_size);
 
   compressed_frames.Increment();
 }
 
 }  // namespace net