Remove calls to deprecated MessageLoop methods in content.

content/browser/renderer_host/input/input_router_impl_unittest.cc

 // Copyright 2013 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/input_router_impl.h"
 
 #include <math.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 321 matching lines @@
 
   size_t GetSentMessageCountAndResetSink() {
     size_t count = process_->sink().message_count();
     process_->sink().ClearMessages();
     return count;
   }
 
   static void RunTasksAndWait(base::TimeDelta delay) {
     base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE, base::MessageLoop::QuitWhenIdleClosure(), delay);
-    base::MessageLoop::current()->Run();
+    base::RunLoop().Run();
   }
 
   InputRouterImpl::Config config_;
   std::unique_ptr<MockRenderProcessHost> process_;
   std::unique_ptr<MockInputRouterClient> client_;
   std::unique_ptr<MockInputAckHandler> ack_handler_;
   std::unique_ptr<InputRouterImpl> input_router_;
 
  private:
   base::MessageLoopForUI message_loop_;
@@ skipping 1924 matching lines @@
   EXPECT_EQ(80, sent_event->data.flingStart.velocityY);
 
   const WebGestureEvent* filter_event =
       GetFilterWebInputEvent<WebGestureEvent>();
   TestLocationInFilterEvent(filter_event, orig);
   EXPECT_EQ(30, filter_event->data.flingStart.velocityX);
   EXPECT_EQ(40, filter_event->data.flingStart.velocityY);
 }
 
 }  // namespace content