Fix the uses of T* conversion operator from scoped_refptr<T> which is now removed.

ui/events/ozone/evdev/event_factory_evdev.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 "ui/events/ozone/evdev/event_factory_evdev.h"
 
 #include <fcntl.h>
 #include <linux/input.h>
 
 #include "base/debug/trace_event.h"
@@ skipping 180 matching lines @@
       break;
     case DeviceEvent::REMOVE: {
       TRACE_EVENT1("ozone", "OnDeviceRemoved", "path", event.path().value());
       DetachInputDevice(event.path());
     }
       break;
   }
 }
 
 void EventFactoryEvdev::OnDispatcherListChanged() {
-  if (!ui_task_runner_) {
+  if (!ui_task_runner_.get()) {
     ui_task_runner_ = base::ThreadTaskRunnerHandle::Get();
     // Scan & monitor devices.
     device_manager_->AddObserver(this);
     device_manager_->ScanDevices(this);
   }
 }
 
 void EventFactoryEvdev::DetachInputDevice(const base::FilePath& path) {
   TRACE_EVENT1("ozone", "DetachInputDevice", "path", path.value());
   CHECK(ui_task_runner_->RunsTasksOnCurrentThread());
@@ skipping 22 matching lines @@
     MouseEvent mouse_event(ET_MOUSE_MOVED,
                            cursor_->location(),
                            cursor_->location(),
                            modifiers_.GetModifierFlags(),
                            /* changed_button_flags */ 0);
     DispatchEvent(&mouse_event);
   }
 }
 
 }  // namespace ui