Allows chromoting host to be connected again after connection drops.

remoting/host/chromoting_host.cc

Index: remoting/host/chromoting_host.cc
diff --git a/remoting/host/chromoting_host.cc b/remoting/host/chromoting_host.cc
index 1bc7b984f2d362aacc076c16d7bc1b6fd0634042..390096c48f1b029717bbdbd9a1497b637872f309 100644
--- a/remoting/host/chromoting_host.cc
+++ b/remoting/host/chromoting_host.cc
@@ -76,6 +76,7 @@ void ChromotingHost::OnClientConnected(ClientConnection* client) {
   } else {
     // If a session manager already exists we simply add the new client.
     session_->AddClient(client);
+    session_->Start();
   }
 }
 
@@ -89,6 +90,9 @@ void ChromotingHost::OnClientDisconnected(ClientConnection* client) {
     session_->Pause();
   }
 
+  // Close the connection to client just to be safe.
+  client->Disconnect();
+
   // Also remove reference to ClientConnection from this object.
   client_ = NULL;
 }
@@ -117,7 +121,6 @@ void ChromotingHost::OnConnectionOpened(ClientConnection* client) {
 void ChromotingHost::OnConnectionClosed(ClientConnection* client) {
   DCHECK_EQ(context_->main_message_loop(), MessageLoop::current());
 
-  // Completes the client connection.
   LOG(INFO) << "Connection to client closed.";
   OnClientDisconnected(client_.get());
 }
@@ -125,7 +128,6 @@ void ChromotingHost::OnConnectionClosed(ClientConnection* client) {
 void ChromotingHost::OnConnectionFailed(ClientConnection* client) {
   DCHECK_EQ(context_->main_message_loop(), MessageLoop::current());
 
-  // The client has disconnected.
   LOG(ERROR) << "Connection failed unexpectedly.";
   OnClientDisconnected(client_.get());
 }