base: Change DCHECK_IS_ON to a macro DCHECK_IS_ON().

content/renderer/media/remote_media_stream_impl.cc

 // Copyright (c) 2013 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 "content/renderer/media/remote_media_stream_impl.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 195 matching lines @@
  private:
   void InitializeWebkitAudioTrack(
       scoped_ptr<RemoteMediaStreamAudioTrack> media_stream_track);
 
   // webrtc::ObserverInterface implementation.
   void OnChanged() override;
 
   void OnChangedOnMainThread(
       webrtc::MediaStreamTrackInterface::TrackState state);
 
-#if DCHECK_IS_ON
+#if !DCHECK_IS_OFF
   bool unregistered_;
 #endif
 
   webrtc::MediaStreamTrackInterface::TrackState state_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoteAudioTrackAdapter);
 };
 
 // Called on the signaling thread.
 RemoteAudioTrackAdapter::RemoteAudioTrackAdapter(
     const scoped_refptr<base::SingleThreadTaskRunner>& main_thread,
     webrtc::AudioTrackInterface* webrtc_track)
     : RemoteMediaStreamTrackAdapter(main_thread, webrtc_track),
-#if DCHECK_IS_ON
+#if !DCHECK_IS_OFF
       unregistered_(false),
 #endif
       state_(observed_track()->state()) {
   // TODO(tommi): Use TrackObserver instead.
   observed_track()->RegisterObserver(this);
   scoped_ptr<RemoteMediaStreamAudioTrack> media_stream_track(
       new RemoteMediaStreamAudioTrack(observed_track().get(),
           base::ThreadTaskRunnerHandle::Get()));
   // Here, we use base::Unretained() to avoid a circular reference.
   webkit_initialize_ = base::Bind(
           &RemoteAudioTrackAdapter::InitializeWebkitAudioTrack,
           base::Unretained(this), base::Passed(&media_stream_track));
 }
 
 RemoteAudioTrackAdapter::~RemoteAudioTrackAdapter() {
-#if DCHECK_IS_ON
+#if !DCHECK_IS_OFF
   DCHECK(unregistered_);
 #endif
 }
 
 void RemoteAudioTrackAdapter::Unregister() {
-#if DCHECK_IS_ON
+#if !DCHECK_IS_OFF
   DCHECK(!unregistered_);
   unregistered_ = true;
 #endif
   observed_track()->UnregisterObserver(this);
 }
 
 void RemoteAudioTrackAdapter::InitializeWebkitAudioTrack(
     scoped_ptr<RemoteMediaStreamAudioTrack> media_stream_track) {
   InitializeWebkitTrack(blink::WebMediaStreamSource::TypeAudio);
   webkit_track()->setExtraData(media_stream_track.release());
@@ skipping 179 matching lines @@
   // Unregister all the audio track observers that were not used.
   // We need to do this before destruction since the observers can't unregister
   // from within the dtor due to a race.
   for (auto& track : *audio_tracks.get()) {
     if (track.get())
       track->Unregister();
   }
 }
 
 }  // namespace content