media: Require SecureContext for EME APIs (prototype)

third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl

Index: third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
diff --git a/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl b/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
index 7998203599e2ee50d3a532da71b5157aa70a7aed..09d90516920a159ec04a831d88487e41e962ca2b 100644
--- a/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
+++ b/third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
@@ -1,8 +1,9 @@
 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-
-partial interface HTMLMediaElement {
+[
+    SecureContext,
+] partial interface HTMLMediaElement {
     readonly attribute MediaKeys mediaKeys;
     [CallWith=ScriptState] Promise setMediaKeys(MediaKeys? mediaKeys);
     attribute EventHandler onencrypted;