Remove calls to deprecated MessageLoop methods in content.

content/browser/renderer_host/input/gesture_event_queue_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/input/gesture_event_queue.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 1074 matching lines @@
 
   SimulateGestureEvent(WebInputEvent::GestureTapDown,
                        blink::WebGestureDeviceTouchscreen);
   EXPECT_EQ(0U, GetAndResetSentGestureEventCount());
   EXPECT_EQ(2U, GestureEventQueueSize());
   EXPECT_EQ(3U, GestureEventDebouncingQueueSize());
 
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, base::MessageLoop::QuitWhenIdleClosure(),
       TimeDelta::FromMilliseconds(5));
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
 
   // The deferred events are correctly queued in coalescing queue.
   EXPECT_EQ(0U, GetAndResetSentGestureEventCount());
   EXPECT_EQ(5U, GestureEventQueueSize());
   EXPECT_EQ(0U, GestureEventDebouncingQueueSize());
   EXPECT_FALSE(ScrollingInProgress());
 
   // Verify that the coalescing queue contains the correct events.
   WebInputEvent::Type expected[] = {
       WebInputEvent::GestureScrollUpdate,
@@ skipping 68 matching lines @@
   WebGestureEvent synthetic_begin = SyntheticWebGestureEventBuilder::Build(
       WebInputEvent::GestureScrollBegin, blink::WebGestureDeviceTouchpad);
   synthetic_begin.data.scrollBegin.synthetic = true;
 
   SimulateGestureEvent(synthetic_begin);
   EXPECT_EQ(0U, GetAndResetSentGestureEventCount());
   EXPECT_EQ(1U, GestureEventQueueSize());
 }
 
 }  // namespace content