mozilla-central: changeset 258040:36895151defddf076a922b514312336d38f84900

author	Ehsan Akhgari <ehsan@mozilla.com>
	Mon, 17 Aug 2015 11:44:32 -0400
changeset 258040	36895151defddf076a922b514312336d38f84900
parent 258039	a36cd3e1092730ec25c4c7e6cf1d21b4aa645bd7
child 258041	1b61da1529722e661ff5de3c10e58a919df00b66
push id	29241
push user	kwierso@gmail.com
push date	Tue, 18 Aug 2015 00:00:46 +0000
treeherder	mozilla-central@6ae3e9ff53b2 [default view] [failures only]
perfherder	[talos] [build metrics] [platform microbench] (compared to previous push)
bugs	1195051
milestone	43.0a1
first release with	nightly linux32 90d9b7c391d3 / 43.0a1 / 20150818030209 / files nightly linux64 90d9b7c391d3 / 43.0a1 / 20150818030209 / files nightly mac 90d9b7c391d3 / 43.0a1 / 20150818030209 / files nightly win32 90d9b7c391d3 / 43.0a1 / 20150818030209 / files nightly win64 90d9b7c391d3 / 43.0a1 / 20150818030209 / files
last release without	nightly linux32 a6eeb28458fd / 43.0a1 / 20150817061040 / files nightly linux64 a6eeb28458fd / 43.0a1 / 20150817061040 / files nightly mac a6eeb28458fd / 43.0a1 / 20150817061040 / files nightly win32 a6eeb28458fd / 43.0a1 / 20150817061040 / files nightly win64 a6eeb28458fd / 43.0a1 / 20150817061040 / files

--- a/dom/media/webaudio/AudioDestinationNode.cpp
+++ b/dom/media/webaudio/AudioDestinationNode.cpp
@@ -538,17 +538,22 @@ NS_IMETHODIMP
 AudioDestinationNode::WindowAudioCaptureChanged()
 {
   MOZ_ASSERT(mAudioChannelAgent);
 
   if (!mStream || Context()->IsOffline()) {
     return NS_OK;
   }
 
-  bool captured = GetOwner()->GetAudioCaptured();
+  nsCOMPtr<nsPIDOMWindow> ownerWindow = GetOwner();
+  if (!ownerWindow) {
+    return NS_OK;
+  }
+
+  bool captured = ownerWindow->GetAudioCaptured();
 
   if (captured != mCaptured) {
     if (captured) {
       nsCOMPtr<nsPIDOMWindow> window = Context()->GetParentObject();
       uint64_t id = window->WindowID();
       mCaptureStreamPort =
         mStream->Graph()->ConnectToCaptureStream(id, mStream);
     } else {