Refactor "options" argument to getUserMedia to be a dictionary

Source/modules/mediastream/MediaStreamConstraints.idl

Index: Source/modules/mediastream/MediaStreamConstraints.idl
diff --git a/Source/modules/geolocation/NavigatorGeolocation.idl b/Source/modules/mediastream/MediaStreamConstraints.idl
similarity index 87%
copy from Source/modules/geolocation/NavigatorGeolocation.idl
copy to Source/modules/mediastream/MediaStreamConstraints.idl
index 9b96fd709daafc4a5aab37a63fa8a1bbc0dd4a27..4ccb4ab02ce1c0b29a40516bfe20cac3876e12cd 100644
--- a/Source/modules/geolocation/NavigatorGeolocation.idl
+++ b/Source/modules/mediastream/MediaStreamConstraints.idl
@@ -17,6 +17,7 @@
  * Boston, MA 02110-1301, USA.
  */
 
-partial interface Navigator {
-    readonly attribute Geolocation geolocation;
+dictionary MediaStreamConstraints {
+    (boolean or Dictionary) video = false;
+    (boolean or Dictionary) audio = false;
 };