Access ChromotingHost::clients_ only on network thread.

remoting/protocol/jingle_session.cc

Index: remoting/protocol/jingle_session.cc
diff --git a/remoting/protocol/jingle_session.cc b/remoting/protocol/jingle_session.cc
index b510ae8ae434e8974a8212c4bd4f56fb224aa863..746682ce878fe7f99e0f4397d874484813bd5a39 100644
--- a/remoting/protocol/jingle_session.cc
+++ b/remoting/protocol/jingle_session.cc
@@ -65,8 +65,6 @@ JingleSession::JingleSession(
 }
 
 JingleSession::~JingleSession() {
-  // Reset the callback so that it's not called from Close().
-  state_change_callback_.Reset();
   Close();
   jingle_session_manager_->SessionDestroyed(this);
 }
@@ -235,7 +233,8 @@ const std::string& JingleSession::shared_secret() {
 
 void JingleSession::Close() {
   DCHECK(CalledOnValidThread());
-
+  // Ensure that we won't notify the callback again.
+  state_change_callback_.Reset();
   CloseInternal(net::ERR_CONNECTION_CLOSED, false);
 }