Revert of base: Remove use of MessageLoopProxy

base/android/application_status_listener_unittest.cc

Index: base/android/application_status_listener_unittest.cc
diff --git a/base/android/application_status_listener_unittest.cc b/base/android/application_status_listener_unittest.cc
index ce78bf9c8627f74250251619bd59a0768a402e49..1049628f5a3b6cb9584751a6154f2ac639ab0120 100644
--- a/base/android/application_status_listener_unittest.cc
+++ b/base/android/application_status_listener_unittest.cc
@@ -7,7 +7,7 @@
 #include "base/callback_forward.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "base/run_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
@@ -49,8 +49,9 @@
   void Run() {
     // Start the thread and tell it to register for events.
     thread_.Start();
-    thread_.task_runner()->PostTask(
-        FROM_HERE, base::Bind(&MultiThreadedTest::RegisterThreadForEvents,
+    thread_.message_loop()
+        ->PostTask(FROM_HERE,
+                   base::Bind(&MultiThreadedTest::RegisterThreadForEvents,
                               base::Unretained(this)));
 
     // Wait for its completion.