Remove volume level DCHECK in WebRtcAudioCapturer on CrOS

content/renderer/media/webrtc_audio_capturer.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 "content/renderer/media/webrtc_audio_capturer.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
@@ skipping 439 matching lines @@
 
 void WebRtcAudioCapturer::Capture(media::AudioBus* audio_source,
                                   int audio_delay_milliseconds,
                                   double volume,
                                   bool key_pressed) {
 // This callback is driven by AudioInputDevice::AudioThreadCallback if
 // |source_| is AudioInputDevice, otherwise it is driven by client's
 // CaptureCallback.
 #if defined(OS_WIN) || defined(OS_MACOSX)
   DCHECK_LE(volume, 1.0);
-#elif defined(OS_LINUX) || defined(OS_OPENBSD)
+#elif (defined(OS_LINUX) && !defined(OS_CHROMEOS)) || defined(OS_OPENBSD)
   // We have a special situation on Linux where the microphone volume can be
   // "higher than maximum". The input volume slider in the sound preference
   // allows the user to set a scaling that is higher than 100%. It means that
   // even if the reported maximum levels is N, the actual microphone level can
   // go up to 1.5x*N and that corresponds to a normalized |volume| of 1.5x.
   DCHECK_LE(volume, 1.6);
 #endif
 
   TrackList::ItemList tracks;
   TrackList::ItemList tracks_to_notify_format;
@@ skipping 149 matching lines @@
   DCHECK(aec_dump_file.IsValid());
   audio_processor_->StartAecDump(aec_dump_file.Pass());
 }
 
 void WebRtcAudioCapturer::StopAecDump() {
   DCHECK(thread_checker_.CalledOnValidThread());
   audio_processor_->StopAecDump();
 }
 
 }  // namespace content