Enable content embedders to specify mojo application task runner.

content/child/process_control_impl.cc

 // Copyright 2015 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 "content/child/process_control_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
+#include "content/common/mojo/embedded_application_runner.h"
 #include "content/public/common/content_client.h"
 
 namespace content {
 
 ProcessControlImpl::ProcessControlImpl() {
 }
 
 ProcessControlImpl::~ProcessControlImpl() {
 }
 
 void ProcessControlImpl::LoadApplication(
     const mojo::String& name,
     shell::mojom::ShellClientRequest request,
     const LoadApplicationCallback& callback) {
   // Only register apps on first run.
   if (!has_registered_apps_) {
     DCHECK(apps_.empty());
-    ApplicationFactoryMap app_factories;
-    RegisterApplicationFactories(&app_factories);
-    for (const auto& factory : app_factories) {
+    ApplicationMap apps;
+    RegisterApplications(&apps);
+    for (const auto& app : apps) {
       std::unique_ptr<EmbeddedApplicationRunner> runner(
-          new EmbeddedApplicationRunner(factory.second, nullptr));
+          new EmbeddedApplicationRunner(app.second.application_factory,
+                                        app.second.application_task_runner));
       runner->SetQuitClosure(base::Bind(&ProcessControlImpl::OnApplicationQuit,
                                         base::Unretained(this)));
-      apps_.insert(std::make_pair(factory.first, std::move(runner)));
+      apps_.insert(std::make_pair(app.first, std::move(runner)));
     }
     has_registered_apps_ = true;
   }
 
   auto it = apps_.find(name);
   if (it == apps_.end()) {
     callback.Run(false);
     OnLoadFailed();
     return;
   }
 
   callback.Run(true);
   it->second->BindShellClientRequest(std::move(request));
 }
 
 }  // namespace content