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-rw-r--r--chrome/browser/chromeos/audio_mixer_alsa.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/chrome/browser/chromeos/audio_mixer_alsa.h b/chrome/browser/chromeos/audio_mixer_alsa.h
index 1626d29..eeb5b26 100644
--- a/chrome/browser/chromeos/audio_mixer_alsa.h
+++ b/chrome/browser/chromeos/audio_mixer_alsa.h
@@ -77,6 +77,7 @@ class AudioMixerAlsa : public AudioMixer {
double rounding_bias);
// In ALSA, the mixer element's 'switch' is turned off to mute.
+ // GetElementMuted_Locked() returns false on failure.
bool GetElementMuted_Locked(_snd_mixer_elem* elem) const;
void SetElementMuted_Locked(_snd_mixer_elem* elem, bool mute);