Remove use of deprecated MessageLoop methods in ui.

ui/gl/gl_context_cgl.cc

 // Copyright (c) 2012 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 "ui/gl/gl_context_cgl.h"
 
 #include <OpenGL/CGLRenderers.h>
 #include <OpenGL/CGLTypes.h>
 
 #include <memory>
 #include <vector>
 
+#include "base/location.h"
 #include "base/logging.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gpu_switching_manager.h"
 #include "ui/gl/scoped_cgl.h"
 #include "ui/gl/yuv_to_rgb_converter.h"
 
 namespace gl {
 
@@ skipping 115 matching lines @@
 
 void GLContextCGL::Destroy() {
   if (yuv_to_rgb_converter_) {
     ScopedCGLSetCurrentContext(static_cast<CGLContextObj>(context_));
     yuv_to_rgb_converter_.reset();
   }
   if (discrete_pixelformat_) {
     if (base::MessageLoop::current() != nullptr) {
       // Delay releasing the pixel format for 10 seconds to reduce the number of
       // unnecessary GPU switches.
-      base::MessageLoop::current()->PostDelayedTask(
+      base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
           FROM_HERE, base::Bind(&CGLReleasePixelFormat, discrete_pixelformat_),
           base::TimeDelta::FromSeconds(10));
     } else {
       CGLReleasePixelFormat(discrete_pixelformat_);
     }
     discrete_pixelformat_ = nullptr;
   }
   if (context_) {
     CGLDestroyContext(static_cast<CGLContextObj>(context_));
     context_ = nullptr;
@@ skipping 119 matching lines @@
 
 GLContextCGL::~GLContextCGL() {
   Destroy();
 }
 
 GpuPreference GLContextCGL::GetGpuPreference() {
   return gpu_preference_;
 }
 
 }  // namespace gl