More WaitableEvent stragglers migrated to enum-based constructor

chromecast/media/base/media_resource_tracker_unittest.cc

 // Copyright 2016 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 "chromecast/media/base/media_resource_tracker.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/task_runner.h"
 #include "base/threading/thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromecast {
 namespace media {
 
 void RunUntilIdle(base::TaskRunner* task_runner) {
-  base::WaitableEvent completion_event(false, false);
+  base::WaitableEvent completion_event(
+      base::WaitableEvent::ResetPolicy::AUTOMATIC,
+      base::WaitableEvent::InitialState::NOT_SIGNALED);
   task_runner->PostTask(FROM_HERE,
                         base::Bind(&base::WaitableEvent::Signal,
                                    base::Unretained(&completion_event)));
   completion_event.Wait();
 }
 
 // Collection of mocks to verify MediaResourceTracker takes the correct actions.
 class MediaResourceTrackerTestMocks : public MediaResourceTracker::Delegate {
  public:
   MOCK_METHOD0(Initialize, void());  // CastMediaShlib::Initialize
@@ skipping 215 matching lines @@
   EXPECT_CALL(*test_mocks_, OnStopUsingMedia()).Times(0);
 
   DecrementMediaUsageCount();
 
   RunUntilIdle(media_task_runner_.get());
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace media
 }  // namespace chromecast