ppapi: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

ppapi/nacl_irt/manifest_service.h

Index: ppapi/nacl_irt/manifest_service.h
diff --git a/ppapi/nacl_irt/manifest_service.h b/ppapi/nacl_irt/manifest_service.h
index e3d7d1550c8f3bee28ddd1442c7f581d70b18991..7a869e7c58a8bde1c0d1909b84ab14d01ed6887c 100644
--- a/ppapi/nacl_irt/manifest_service.h
+++ b/ppapi/nacl_irt/manifest_service.h
@@ -11,7 +11,7 @@
 #include "base/synchronization/lock.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 class WaitableEvent;
 }  // namespace base
 
@@ -26,7 +26,7 @@ namespace ppapi {
 class ManifestService {
  public:
   ManifestService(const IPC::ChannelHandle& handle,
-                  scoped_refptr<base::MessageLoopProxy> io_message_loop,
+                  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
                   base::WaitableEvent* shutdown_event);
   ~ManifestService();