Make OS audio buffer size limits visible.

content/renderer/media/renderer_webaudiodevice_impl.cc

Index: content/renderer/media/renderer_webaudiodevice_impl.cc
diff --git a/content/renderer/media/renderer_webaudiodevice_impl.cc b/content/renderer/media/renderer_webaudiodevice_impl.cc
index ef941bec24e00b4c414f38abd6562ecf39c08ba3..568052e57b0e4727d79f1e9805a81c5cd32f5b53 100644
--- a/content/renderer/media/renderer_webaudiodevice_impl.cc
+++ b/content/renderer/media/renderer_webaudiodevice_impl.cc
@@ -65,12 +65,9 @@ int GetOutputBufferSize(const blink::WebAudioLatencyHint& latency_hint,
           hardware_params.sample_rate(), 0);
       break;
     case media::AudioLatency::LATENCY_EXACT_MS:
-      // TODO(andrew.macpherson@soundtrap.com): http://crbug.com/708917
-      return std::min(4096,
-                      media::AudioLatency::GetExactBufferSize(
-                          base::TimeDelta::FromSecondsD(latency_hint.Seconds()),
-                          hardware_params.sample_rate(),
-                          hardware_params.frames_per_buffer()));
+      return media::AudioLatency::GetExactBufferSize(
+          base::TimeDelta::FromSecondsD(latency_hint.Seconds()),
+          hardware_params.sample_rate(), hardware_params.frames_per_buffer());
       break;
     default:
       NOTREACHED();