Remove calls to deprecated MessageLoop methods on Windows and Linux.

ui/views/widget/desktop_aura/x11_whole_screen_move_loop.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/x11_whole_screen_move_loop.h"
 
 #include <stddef.h>
 #include <X11/keysym.h>
 #include <X11/Xlib.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "ui/aura/client/capture_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/keycodes/keyboard_code_conversion_x.h"
 #include "ui/events/platform/platform_event_source.h"
@@ skipping 56 matching lines @@
     case ui::ET_MOUSE_DRAGGED: {
       bool dispatch_mouse_event = !last_motion_in_screen_.get();
       last_motion_in_screen_.reset(
           ui::EventFromNative(xev).release()->AsMouseEvent());
       last_motion_in_screen_->set_location(
           ui::EventSystemLocationFromNative(xev));
       if (dispatch_mouse_event) {
         // Post a task to dispatch mouse movement event when control returns to
         // the message loop. This allows smoother dragging since the events are
         // dispatched without waiting for the drag widget updates.
-        base::MessageLoopForUI::current()->PostTask(
+        base::MessageLoopForUI::current()->task_runner()->PostTask(
             FROM_HERE,
             base::Bind(&X11WholeScreenMoveLoop::DispatchMouseMovement,
                        weak_factory_.GetWeakPtr()));
       }
       return ui::POST_DISPATCH_NONE;
     }
     case ui::ET_MOUSE_RELEASED: {
       int button = (xev->type == ButtonRelease)
           ? xev->xbutton.button
           : ui::EventButtonFromNative(xev);
@@ skipping 167 matching lines @@
                                 DefaultRootWindow(display),
                                 -100, -100, 10, 10,
                                 0, CopyFromParent, InputOnly, CopyFromParent,
                                 attribute_mask, &swa);
   XMapRaised(display, window);
   ui::X11EventSource::GetInstance()->BlockUntilWindowMapped(window);
   return window;
 }
 
 }  // namespace views