Replace MessageLoop::current()->task_runner() with ThreadTaskRunnerHandle::Get().

components/test_runner/mock_screen_orientation_client.cc

Index: components/test_runner/mock_screen_orientation_client.cc
diff --git a/components/test_runner/mock_screen_orientation_client.cc b/components/test_runner/mock_screen_orientation_client.cc
index dd432329282d3f6752a75b225094df8761235668..e734897194187b25544a26a7eb62e392b209e122 100644
--- a/components/test_runner/mock_screen_orientation_client.cc
+++ b/components/test_runner/mock_screen_orientation_client.cc
@@ -6,8 +6,8 @@
 
 #include "base/bind.h"
 #include "base/logging.h"
-#include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 
 namespace test_runner {
@@ -116,13 +116,13 @@ bool MockScreenOrientationClient::IsOrientationAllowedByCurrentLock(
 void MockScreenOrientationClient::lockOrientation(
     blink::WebScreenOrientationLockType orientation,
     blink::WebLockOrientationCallback* callback) {
-  base::MessageLoop::current()->task_runner()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&MockScreenOrientationClient::UpdateLockSync,
                             base::Unretained(this), orientation, callback));
 }
 
 void MockScreenOrientationClient::unlockOrientation() {
-  base::MessageLoop::current()->task_runner()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&MockScreenOrientationClient::ResetLockSync,
                             base::Unretained(this)));
 }