SPDY sends RST_STREAM upon cancelling request, or bad header parse data.

net/spdy/spdy_session.cc

 // Copyright (c) 2010 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 "base/basictypes.h"
 #include "base/linked_ptr.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 1104 matching lines @@
   }
 
   Respond(*headers, stream);
 }
 
 void SpdySession::OnControl(const spdy::SpdyControlFrame* frame) {
   const linked_ptr<spdy::SpdyHeaderBlock> headers(new spdy::SpdyHeaderBlock);
   uint32 type = frame->type();
   if (type == spdy::SYN_STREAM || type == spdy::SYN_REPLY) {
     if (!spdy_framer_.ParseHeaderBlock(frame, headers.get())) {
-      LOG(WARNING) << "Could not parse Spdy Control Frame Header";
-      // TODO(mbelshe):  Error the session?
+      LOG(WARNING) << "Could not parse Spdy Control Frame Header.";
+      int stream_id = 0;
+      if (type == spdy::SYN_STREAM)
+        stream_id = (reinterpret_cast<const spdy::SpdySynStreamControlFrame*>
+                     (frame))->stream_id();
+      if (type == spdy::SYN_REPLY)
+        stream_id = (reinterpret_cast<const spdy::SpdySynReplyControlFrame*>
+                     (frame))->stream_id();
+      if(IsStreamActive(stream_id))
+        ResetStream(stream_id, spdy::PROTOCOL_ERROR);
       return;
     }
   }
 
   switch (type) {
     case spdy::GOAWAY:
       OnGoAway(*reinterpret_cast<const spdy::SpdyGoAwayControlFrame*>(frame));
       break;
     case spdy::SETTINGS:
       OnSettings(
@@ skipping 183 matching lines @@
           UMA_HISTOGRAM_CUSTOM_COUNTS("Net.SpdySettingsRetransRate",
                                       setting.second,
                                       1, 100, 50);
           break;
       }
     }
   }
 }
 
 }  // namespace net