Move Mus into chrome's process when running with --mus.

content/common/service_manager/embedded_service_runner.cc

Index: content/common/service_manager/embedded_service_runner.cc
diff --git a/content/common/service_manager/embedded_service_runner.cc b/content/common/service_manager/embedded_service_runner.cc
index 665a6e388b3569a4996daccbc6f23c4c99d4f9f5..f2ab9949c590dff18af7ee33891e7540f6868c04 100644
--- a/content/common/service_manager/embedded_service_runner.cc
+++ b/content/common/service_manager/embedded_service_runner.cc
@@ -30,6 +30,8 @@ class EmbeddedServiceRunner::InstanceManager
       : name_(name.as_string()),
         factory_callback_(info.factory),
         use_own_thread_(!info.task_runner && info.use_own_thread),
+        message_loop_type_(info.message_loop_type),
+        thread_priority_(info.thread_priority),
         quit_closure_(quit_closure),
         quit_task_runner_(base::ThreadTaskRunnerHandle::Get()),
         service_task_runner_(info.task_runner) {
@@ -40,10 +42,16 @@ class EmbeddedServiceRunner::InstanceManager
   void BindServiceRequest(service_manager::mojom::ServiceRequest request) {
     DCHECK(runner_thread_checker_.CalledOnValidThread());
 
+    LOG(ERROR) << "EmbeddedServiceRunner::InstanceManager::BindServiceRequest: "
+        << "name_=" << name_;
     if (use_own_thread_ && !thread_) {
+      LOG(ERROR) << 1;
       // Start a new thread if necessary.
       thread_.reset(new base::Thread(name_));
-      thread_->Start();
+      base::Thread::Options options;
+      options.message_loop_type = message_loop_type_;
+      options.priority = thread_priority_;
+      thread_->StartWithOptions(options);
       service_task_runner_ = thread_->task_runner();
     }
 
@@ -133,6 +141,8 @@ class EmbeddedServiceRunner::InstanceManager
   const std::string name_;
   const ServiceInfo::ServiceFactory factory_callback_;
   const bool use_own_thread_;
+  base::MessageLoop::Type message_loop_type_;
+  base::ThreadPriority thread_priority_;
   const base::Closure quit_closure_;
   const scoped_refptr<base::SingleThreadTaskRunner> quit_task_runner_;