Bug 1546872 - Update cubeb from upstream to 64aa80f. r=padenot

Pick commit:
64aa80f - wasapi: notify when a device is disabled. BMO 1546872

media/libcubeb/moz.yaml

@@ -19,5 +19,5 @@ origin:
   license: "ISC"
 
   # update.sh will update this value
-  release: "3570749942a4fea2b7e372833cb8374ce42cf389 (2019-04-24 13:04:01 +1200)"
+  release: "64aa80f330a3dc510b1e3ac0e92cc6bed129a9a6 (2019-04-25 17:32:33 +0200)"
 

media/libcubeb/src/cubeb_wasapi.cpp

@@ -485,16 +485,12 @@ public:
     XASSERT(cubeb_context->output_collection_changed_callback ||
             cubeb_context->input_collection_changed_callback);
     LOG("collection: Audio device state changed, id = %S, state = %lu.", device_id, new_state);
-    if (new_state == DEVICE_STATE_ACTIVE ||
-        new_state == DEVICE_STATE_NOTPRESENT ||
-        new_state == DEVICE_STATE_UNPLUGGED) {
-      EDataFlow flow;
-      HRESULT hr = GetDataFlow(device_id, &flow);
-      if (FAILED(hr)) {
-        return hr;
-      }
-      monitor_notifications.notify(flow);
+    EDataFlow flow;
+    HRESULT hr = GetDataFlow(device_id, &flow);
+    if (FAILED(hr)) {
+      return hr;
     }
+    monitor_notifications.notify(flow);
     return S_OK;
   }