Rename runtime enabled check for prefixed Encrypted Media API.

Source/core/html/HTMLMediaElement.idl

Index: Source/core/html/HTMLMediaElement.idl
diff --git a/Source/core/html/HTMLMediaElement.idl b/Source/core/html/HTMLMediaElement.idl
index 5c74add1fd3d10a8a44cfe1f18e4755c90fdca3b..b395526dfb6825d486ac7c8e1eb78a52a3435379 100644
--- a/Source/core/html/HTMLMediaElement.idl
+++ b/Source/core/html/HTMLMediaElement.idl
@@ -88,20 +88,21 @@ readonly attribute unsigned long webkitAudioDecodedByteCount;
 readonly attribute unsigned long webkitVideoDecodedByteCount;
 
 #if defined(ENABLE_ENCRYPTED_MEDIA_V2) && ENABLE_ENCRYPTED_MEDIA_V2
-[EnabledAtRuntime=encryptedMedia, RaisesException, DeprecateAs=PrefixedMediaGenerateKeyRequest] void webkitGenerateKeyRequest([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, optional Uint8Array initData);
-[EnabledAtRuntime=encryptedMedia, RaisesException, DeprecateAs=PrefixedMediaAddKey] void webkitAddKey([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, Uint8Array key, optional Uint8Array initData, [Default=NullString] optional DOMString sessionId);
+[EnabledAtRuntime=legacyEncryptedMedia, RaisesException, DeprecateAs=PrefixedMediaGenerateKeyRequest] void webkitGenerateKeyRequest([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, optional Uint8Array initData);
+[EnabledAtRuntime=legacyEncryptedMedia, RaisesException, DeprecateAs=PrefixedMediaAddKey] void webkitAddKey([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, Uint8Array key, optional Uint8Array initData, [Default=NullString] optional DOMString sessionId);
 #else
-[EnabledAtRuntime=encryptedMedia, RaisesException] void webkitGenerateKeyRequest([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, optional Uint8Array initData);
-[EnabledAtRuntime=encryptedMedia, RaisesException] void webkitAddKey([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, Uint8Array key, optional Uint8Array initData, [Default=NullString] optional DOMString sessionId);
+[EnabledAtRuntime=legacyEncryptedMedia, RaisesException] void webkitGenerateKeyRequest([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, optional Uint8Array initData);
+[EnabledAtRuntime=legacyEncryptedMedia, RaisesException] void webkitAddKey([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, Uint8Array key, optional Uint8Array initData, [Default=NullString] optional DOMString sessionId);
 #endif
-[EnabledAtRuntime=encryptedMedia, RaisesException] void webkitCancelKeyRequest([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, [Default=NullString] optional DOMString sessionId);
+[EnabledAtRuntime=legacyEncryptedMedia, RaisesException] void webkitCancelKeyRequest([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString keySystem, [Default=NullString] optional DOMString sessionId);
+
+[EnabledAtRuntime=legacyEncryptedMedia] attribute EventListener onwebkitkeyadded;
+[EnabledAtRuntime=legacyEncryptedMedia] attribute EventListener onwebkitkeyerror;
+[EnabledAtRuntime=legacyEncryptedMedia] attribute EventListener onwebkitkeymessage;
+[EnabledAtRuntime=legacyEncryptedMedia] attribute EventListener onwebkitneedkey;
 
-    [EnabledAtRuntime=encryptedMedia] attribute EventListener onwebkitkeyadded;
-    [EnabledAtRuntime=encryptedMedia] attribute EventListener onwebkitkeyerror;
-    [EnabledAtRuntime=encryptedMedia] attribute EventListener onwebkitkeymessage;
-    [EnabledAtRuntime=encryptedMedia] attribute EventListener onwebkitneedkey;
 #if defined(ENABLE_ENCRYPTED_MEDIA_V2) && ENABLE_ENCRYPTED_MEDIA_V2
-    [EnabledAtRuntime=encryptedMedia] attribute MediaKeys mediaKeys;
+[EnabledAtRuntime=encryptedMedia] attribute MediaKeys mediaKeys;
 #endif
 
 [EnabledAtRuntime=videoTrack, RaisesException] TextTrack addTextTrack(DOMString kind, optional DOMString label, optional DOMString language);