[SPDY] Incorporate latest framing changes from HTTP2 into SPDY 4 as SPDY 4a2.

net/spdy/spdy_session.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/spdy_session.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 43 matching lines @@
 // Minimum seconds that unclaimed pushed streams will be kept in memory.
 const int kMinPushedStreamLifetimeSeconds = 300;
 
 int NPNToSpdyVersion(NextProto next_proto) {
   switch (next_proto) {
     case kProtoSPDY2:
       return kSpdyVersion2;
     case kProtoSPDY3:
     case kProtoSPDY31:
       return kSpdyVersion3;
-    case kProtoSPDY4a1:
+    case kProtoSPDY4a2:
       return kSpdyVersion4;
     default:
       NOTREACHED();
   }
   return kSpdyVersion2;
 }
 
 base::Value* NetLogSpdySynCallback(const SpdyHeaderBlock* headers,
                                    bool fin,
                                    bool unidirectional,
@@ skipping 362 matching lines @@
 
   SSLClientSocket* ssl_socket = GetSSLClientSocket();
   if (ssl_socket && ssl_socket->WasChannelIDSent()) {
     // According to the SPDY spec, the credential associated with the TLS
     // connection is stored in slot[1].
     credential_state_.SetHasCredential(GURL("https://" +
                                             host_port_pair().ToString()));
   }
 
   DCHECK_GE(protocol, kProtoSPDY2);
-  DCHECK_LE(protocol, kProtoSPDY4a1);
+  DCHECK_LE(protocol, kProtoSPDY4a2);
   if (protocol >= kProtoSPDY31) {
     flow_control_state_ = FLOW_CONTROL_STREAM_AND_SESSION;
     session_send_window_size_ = kSpdySessionInitialWindowSize;
     session_recv_window_size_ = kSpdySessionInitialWindowSize;
   } else if (protocol >= kProtoSPDY3) {
     flow_control_state_ = FLOW_CONTROL_STREAM;
   } else {
     flow_control_state_ = FLOW_CONTROL_NONE;
   }
 
@@ skipping 2016 matching lines @@
     if (!queue->empty()) {
       SpdyStreamId stream_id = queue->front();
       queue->pop_front();
       return stream_id;
     }
   }
   return 0;
 }
 
 }  // namespace net