Revert of base: Remove use of MessageLoopProxy

base/threading/thread_perftest.cc

Index: base/threading/thread_perftest.cc
diff --git a/base/threading/thread_perftest.cc b/base/threading/thread_perftest.cc
index 3bc9fb409ce7b3e4bbc42992f4cd5d0d732aceed..a08cc5bf87274ee1ab950d169313720d19a594e7 100644
--- a/base/threading/thread_perftest.cc
+++ b/base/threading/thread_perftest.cc
@@ -5,9 +5,7 @@
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/command_line.h"
-#include "base/location.h"
 #include "base/memory/scoped_vector.h"
-#include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
@@ -56,9 +54,12 @@
   base::TimeTicks ThreadNow(base::Thread* thread) {
     base::WaitableEvent done(false, false);
     base::TimeTicks ticks;
-    thread->task_runner()->PostTask(
-        FROM_HERE, base::Bind(&ThreadPerfTest::TimeOnThread,
-                              base::Unretained(this), &ticks, &done));
+    thread->message_loop_proxy()->PostTask(
+        FROM_HERE,
+        base::Bind(&ThreadPerfTest::TimeOnThread,
+                   base::Unretained(this),
+                   &ticks,
+                   &done));
     done.Wait();
     return ticks;
   }
@@ -127,9 +128,10 @@
       FinishMeasurement();
       return;
     }
-    NextThread(hops)->task_runner()->PostTask(
-        FROM_HERE, base::Bind(&ThreadPerfTest::PingPong, base::Unretained(this),
-                              hops - 1));
+    NextThread(hops)->message_loop_proxy()->PostTask(
+        FROM_HERE,
+        base::Bind(
+            &ThreadPerfTest::PingPong, base::Unretained(this), hops - 1));
   }
 };
 
@@ -196,9 +198,11 @@
   void PingPong(int hops) override {
     remaining_hops_ = hops;
     for (size_t i = 0; i < threads_.size(); i++) {
-      threads_[i]->task_runner()->PostTask(
-          FROM_HERE, base::Bind(&EventPerfTest::WaitAndSignalOnThread,
-                                base::Unretained(this), i));
+      threads_[i]->message_loop_proxy()->PostTask(
+          FROM_HERE,
+          base::Bind(&EventPerfTest::WaitAndSignalOnThread,
+                     base::Unretained(this),
+                     i));
     }
 
     // Kick off the Signal ping-ponging.