cc: Remove unnecessary task runner refptrs from schedulers.

components/view_manager/surfaces/surfaces_scheduler.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 "components/view_manager/surfaces/surfaces_scheduler.h"
 
 #include "cc/surfaces/display.h"
 
 namespace surfaces {
 
 SurfacesScheduler::SurfacesScheduler() {
   cc::SchedulerSettings settings;
   scheduler_ = cc::Scheduler::Create(
-      this, settings, 0, base::MessageLoop::current()->task_runner(), nullptr);
+      this, settings, 0, base::MessageLoop::current()->task_runner().get(),
+      nullptr);
   scheduler_->SetCanStart();
   scheduler_->SetVisible(true);
   scheduler_->SetCanDraw(true);
   scheduler_->SetNeedsCommit();
 }
 
 SurfacesScheduler::~SurfacesScheduler() {
 }
 
 void SurfacesScheduler::SetNeedsDraw() {
@@ skipping 84 matching lines @@
 }
 
 void SurfacesScheduler::SendBeginFramesToChildren(
     const cc::BeginFrameArgs& args) {
 }
 
 void SurfacesScheduler::SendBeginMainFrameNotExpectedSoon() {
 }
 
 }  // namespace mojo