Replace MediaKeySystemOptions with MediaKeySystemConfiguration.

Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.idl

Index: Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.idl
diff --git a/Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.idl b/Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.idl
index 8fa5a7cc5da131becfbc777d7876671a2619d94e..5c6ae2915b35fb72221c088448aa439dfe69314f 100644
--- a/Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.idl
+++ b/Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.idl
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// https://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/encrypted-media.html#requestmediakeysystemaccess
+// https://w3c.github.io/encrypted-media/#navigator-extension-requestmediakeysystemaccess
 
 [
     RuntimeEnabled=EncryptedMedia
 ] partial interface Navigator {
-    [CallWith=ScriptState] Promise<MediaKeySystemAccess> requestMediaKeySystemAccess(DOMString keySystem, optional sequence<MediaKeySystemOptions> supportedConfigurations);
+    [CallWith=ScriptState] Promise<MediaKeySystemAccess> requestMediaKeySystemAccess(DOMString keySystem, optional sequence<MediaKeySystemConfiguration> supportedConfigurations);
 };