Encrypted Media: Support Audio Decrypt-Only.

webkit/media/webmediaplayer_impl.cc

Index: webkit/media/webmediaplayer_impl.cc
diff --git a/webkit/media/webmediaplayer_impl.cc b/webkit/media/webmediaplayer_impl.cc
index 88ba77bfc02e312a44e8182f0ca3d681d75cdc3a..e3b762471910bbe3f0399fb99fed630f9027dd49 100644
--- a/webkit/media/webmediaplayer_impl.cc
+++ b/webkit/media/webmediaplayer_impl.cc
@@ -1117,12 +1117,21 @@ void WebMediaPlayerImpl::NotifyDownloading(bool is_downloading) {
 
 void WebMediaPlayerImpl::StartPipeline() {
   starting_ = true;
+
+  media::RequestDecryptorNotificationCB request_decryptor_notification_cb;
+  if (decryptor_) {
+    request_decryptor_notification_cb =
+        base::Bind(&ProxyDecryptor::RequestDecryptorNotification,
+                   base::Unretained(decryptor_.get()));
+  }
+
   pipeline_->Start(
       filter_collection_.Pass(),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineEnded),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineError),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineSeek),
-      BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineBufferingState));
+      BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineBufferingState),
+      request_decryptor_notification_cb);
 }
 
 void WebMediaPlayerImpl::SetNetworkState(WebMediaPlayer::NetworkState state) {