Reverting again ... More crashes, and the instrumentation did not appear to help

net/spdy/spdy_session.cc

Index: net/spdy/spdy_session.cc
===================================================================
--- net/spdy/spdy_session.cc	(revision 131144)
+++ net/spdy/spdy_session.cc	(working copy)
@@ -431,7 +431,6 @@
 
   state_ = CONNECTED;
   connection_.reset(connection);
-  connection_->AddLayeredPool(this);
   is_secure_ = is_secure;
   certificate_error_code_ = certificate_error_code;
 
@@ -1223,18 +1222,6 @@
   return connection_->socket()->GetLocalAddress(address);
 }
 
-bool SpdySession::CloseOneIdleConnection() {
-  if (spdy_session_pool_ && num_active_streams() == 0) {
-    bool ret = HasOneRef();
-    // Will remove a reference to this.
-    RemoveFromPool();
-    // Since the underlying socket is only returned when |this| is destroyed
-    // we should only return true if RemoveFromPool() removed the last ref.
-    return ret;
-  }
-  return false;
-}
-
 void SpdySession::ActivateStream(SpdyStream* stream) {
   const SpdyStreamId id = stream->stream_id();
   DCHECK(!IsStreamActive(id));