Add support for specifying message loop type and thread priority for content mojo services

content/public/common/service_info.h

Index: content/public/common/service_info.h
diff --git a/content/public/common/service_info.h b/content/public/common/service_info.h
index dcfd270e3d9b9eb5209cad783c620587df0facd2..fa8b229ad6191bbeebc84ee67c46260ab406fbb6 100644
--- a/content/public/common/service_info.h
+++ b/content/public/common/service_info.h
@@ -9,7 +9,9 @@
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
+#include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
+#include "base/threading/platform_thread.h"
 #include "content/common/content_export.h"
 
 namespace service_manager {
@@ -43,6 +45,14 @@ struct CONTENT_EXPORT ServiceInfo {
   //
   // If |task_runner| is not null, this value is ignored.
   bool use_own_thread = false;
+
+  // If the service uses its own thread, this determines the type of the message
+  // loop used by the thread.
+  base::MessageLoop::Type message_loop_type = base::MessageLoop::TYPE_DEFAULT;
+
+  // If the service uses its own thread, this determines the priority of the
+  // thread.
+  base::ThreadPriority thread_priority = base::ThreadPriority::NORMAL;
 };
 
 }  // namespace content