Index: content/browser/renderer_host/media/audio_renderer_host.h |
diff --git a/content/browser/renderer_host/media/audio_renderer_host.h b/content/browser/renderer_host/media/audio_renderer_host.h |
index cfda5ec10c47582a6cd75d84c5979849bee26019..20e5eca2985546e333ff9daa091e45097173a6c6 100644 |
--- a/content/browser/renderer_host/media/audio_renderer_host.h |
+++ b/content/browser/renderer_host/media/audio_renderer_host.h |
@@ -295,7 +295,8 @@ class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter { |
// A map of stream IDs to audio sources. |
AudioEntryMap audio_entries_; |
- // The number of streams in the playing state. |
+ // The number of streams in the playing state. Atomic read safe from any |
+ // thread, but should only be updated from the IO thread. |
base::AtomicRefCount num_playing_streams_; |
// Salt required to translate renderer device IDs to raw device unique IDs |