Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl

Index: modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
diff --git a/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl b/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
index e79fe27d18e171c430650be8da3c2ca3db72b5cc..f096397fbfe21f5b5632300a7ee7217470e1c805 100644
--- a/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
+++ b/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.idl
@@ -3,16 +3,7 @@
 // found in the LICENSE file.
 
 partial interface HTMLMediaElement {
-    [RuntimeEnabled=PrefixedEncryptedMedia, RaisesException, DeprecateAs=PrefixedMediaGenerateKeyRequest] void webkitGenerateKeyRequest([TreatUndefinedAs=NullString] DOMString? keySystem, optional Uint8Array initData);
-    [RuntimeEnabled=PrefixedEncryptedMedia, RaisesException, DeprecateAs=PrefixedMediaAddKey] void webkitAddKey([TreatUndefinedAs=NullString] DOMString? keySystem, Uint8Array key, optional Uint8Array initData, optional DOMString sessionId = null);
-    [RuntimeEnabled=PrefixedEncryptedMedia, RaisesException, DeprecateAs=PrefixedMediaCancelKeyRequest] void webkitCancelKeyRequest([TreatUndefinedAs=NullString] DOMString? keySystem, optional DOMString sessionId = null);
-
-    [RuntimeEnabled=PrefixedEncryptedMedia] attribute EventHandler onwebkitkeyadded;
-    [RuntimeEnabled=PrefixedEncryptedMedia] attribute EventHandler onwebkitkeyerror;
-    [RuntimeEnabled=PrefixedEncryptedMedia] attribute EventHandler onwebkitkeymessage;
-    [RuntimeEnabled=PrefixedEncryptedMedia] attribute EventHandler onwebkitneedkey;
-
     [RuntimeEnabled=EncryptedMedia] readonly attribute MediaKeys mediaKeys;
-    [RuntimeEnabled=EncryptedMedia, TypeChecking=Interface, CallWith=ScriptState] Promise setMediaKeys(MediaKeys? mediaKeys);
+    [RuntimeEnabled=EncryptedMedia, CallWith=ScriptState] Promise setMediaKeys(MediaKeys? mediaKeys);
     [RuntimeEnabled=EncryptedMedia] attribute EventHandler onencrypted;
 };