Fix a couple of regressions that made it in before the weekend.

content/browser/renderer_host/media/audio_renderer_host.cc

Index: content/browser/renderer_host/media/audio_renderer_host.cc
diff --git a/content/browser/renderer_host/media/audio_renderer_host.cc b/content/browser/renderer_host/media/audio_renderer_host.cc
index 76691e160a6d0666b04e71a69753857ba6da4c85..290b94a79bb68cfeab09628ea704f24dea01c0e4 100644
--- a/content/browser/renderer_host/media/audio_renderer_host.cc
+++ b/content/browser/renderer_host/media/audio_renderer_host.cc
@@ -329,19 +329,11 @@ void AudioRendererHost::CloseAndDeleteStream(AudioEntry* entry) {
 
   if (!entry->pending_close) {
     entry->controller->Close(
-        base::Bind(&AudioRendererHost::OnStreamClosed, this, entry));
+        base::Bind(&AudioRendererHost::DeleteEntry, this, entry));
     entry->pending_close = true;
   }
 }
 
-void AudioRendererHost::OnStreamClosed(AudioEntry* entry) {
-  // Delete the entry on the IO thread after we've closed the stream.
-  // (We're currently on the audio thread).
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      base::Bind(&AudioRendererHost::DeleteEntry, this, entry));
-}
-
 void AudioRendererHost::DeleteEntry(AudioEntry* entry) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));