Remove use of deprecated MessageLoop methods in ui.

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.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/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
 
+#include <X11/extensions/shape.h>
+#include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xregion.h>
 #include <X11/Xutil.h>
-#include <X11/extensions/XInput2.h>
-#include <X11/extensions/shape.h>
 
 #include <utility>
 
 #include "base/command_line.h"
+#include "base/location.h"
 #include "base/memory/ptr_util.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "third_party/skia/include/core/SkPath.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/client/focus_client.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_property.h"
 #include "ui/base/dragdrop/os_exchange_data_provider_aurax11.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/ime/input_method.h"
@@ skipping 307 matching lines @@
 
 void DesktopWindowTreeHostX11::Close() {
   // TODO(erg): Might need to do additional hiding tasks here.
   delayed_resize_task_.Cancel();
 
   if (!close_widget_factory_.HasWeakPtrs()) {
     // And we delay the close so that if we are called from an ATL callback,
     // we don't destroy the window before the callback returned (as the caller
     // may delete ourselves on destroy and the ATL callback would still
     // dereference us when the callback returns).
-    base::MessageLoop::current()->PostTask(
-        FROM_HERE,
-        base::Bind(&DesktopWindowTreeHostX11::CloseNow,
-                   close_widget_factory_.GetWeakPtr()));
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(&DesktopWindowTreeHostX11::CloseNow,
+                              close_widget_factory_.GetWeakPtr()));
   }
 }
 
 void DesktopWindowTreeHostX11::CloseNow() {
   if (xwindow_ == None)
     return;
 
   ReleaseCapture();
   native_widget_delegate_->OnNativeWidgetDestroying();
 
@@ skipping 1444 matching lines @@
       previous_bounds_in_pixels_ = bounds_in_pixels_;
       bounds_in_pixels_ = bounds_in_pixels;
 
       if (origin_changed)
         OnHostMoved(bounds_in_pixels_.origin());
 
       if (size_changed) {
         delayed_resize_task_.Reset(base::Bind(
             &DesktopWindowTreeHostX11::DelayedResize,
             close_widget_factory_.GetWeakPtr(), bounds_in_pixels.size()));
-        base::MessageLoop::current()->PostTask(
+        base::ThreadTaskRunnerHandle::Get()->PostTask(
             FROM_HERE, delayed_resize_task_.callback());
       }
       break;
     }
     case GenericEvent: {
       ui::TouchFactory* factory = ui::TouchFactory::GetInstance();
       if (!factory->ShouldProcessXI2Event(xev))
         break;
 
       ui::EventType type = ui::EventTypeFromNative(xev);
@@ skipping 227 matching lines @@
   if (linux_ui) {
     ui::NativeTheme* native_theme = linux_ui->GetNativeTheme(window);
     if (native_theme)
       return native_theme;
   }
 
   return ui::NativeThemeAura::instance();
 }
 
 }  // namespace views