Fix ChromotingHost and DesktopEnvironmentFactory references to TaskRunners.

remoting/host/plugin/host_script_object.cc

Index: remoting/host/plugin/host_script_object.cc
diff --git a/remoting/host/plugin/host_script_object.cc b/remoting/host/plugin/host_script_object.cc
index 15b5ceef9188c47de9f77768cfec162e88f31107..a3869023f1c2f2cecac7addaba87fdc5192bebfa 100644
--- a/remoting/host/plugin/host_script_object.cc
+++ b/remoting/host/plugin/host_script_object.cc
@@ -94,7 +94,6 @@ HostNPScriptObject::HostNPScriptObject(
       np_thread_id_(base::PlatformThread::CurrentId()),
       plugin_task_runner_(
           new PluginThreadTaskRunner(plugin_thread_delegate)),
-      desktop_environment_factory_(new DesktopEnvironmentFactory()),
       failed_login_attempts_(0),
       disconnected_event_(true, false),
       stopped_event_(true, false),
@@ -111,7 +110,7 @@ HostNPScriptObject::~HostNPScriptObject() {
   HostLogHandler::UnregisterLoggingScriptObject(this);
 
   // Stop the message loop. Any attempt to post a task to
-  // |context_.ui_task_runner()| will result in a CHECK() after this point.
+  // |host_context_.ui_task_runner()| will result in a CHECK() after this point.
   // TODO(alexeypa): Enable posting messages to |plugin_task_runner_| during
   // shutdown to avoid this hack.
   plugin_task_runner_->Detach();
@@ -161,6 +160,7 @@ bool HostNPScriptObject::Init() {
   DCHECK(plugin_task_runner_->BelongsToCurrentThread());
   VLOG(2) << "Init";
 
+  // Create threads for the Chromoting host & desktop environment to use.
   host_context_.reset(new ChromotingHostContext(new AutoThreadTaskRunner(
       plugin_task_runner_,
       base::Bind(&base::WaitableEvent::Signal,
@@ -170,6 +170,11 @@ bool HostNPScriptObject::Init() {
     return false;
   }
 
+  // Create the desktop environment factory.
+  desktop_environment_factory_.reset(new DesktopEnvironmentFactory(
+      host_context_->input_task_runner(), host_context_->ui_task_runner()));
+
+  // Start monitoring configured policies.
   policy_watcher_.reset(
       policy_hack::PolicyWatcher::Create(host_context_->network_task_runner()));
   policy_watcher_->StartWatching(
@@ -586,10 +591,13 @@ void HostNPScriptObject::FinishConnect(
 
   // Create the host.
   host_ = new ChromotingHost(
-      host_context_.get(), signal_strategy_.get(),
+      signal_strategy_.get(),
       desktop_environment_factory_.get(),
       CreateHostSessionManager(network_settings,
-                               host_context_->url_request_context_getter()));
+                               host_context_->url_request_context_getter()),
+      host_context_->capture_task_runner(),
+      host_context_->encode_task_runner(),
+      host_context_->network_task_runner());
   host_->AddStatusObserver(this);
   log_to_server_.reset(
       new LogToServer(host_, ServerLogEntry::IT2ME, signal_strategy_.get()));