Restore RuntimeEnabled=PrefixedEncryptedMedia to MediaKeyError.idl.

Source/core/html/MediaError.idl

Index: Source/core/html/MediaError.idl
diff --git a/Source/core/html/MediaError.idl b/Source/core/html/MediaError.idl
index aaffbc230d95186693d0081f763dd686627ae853..816ecfdf8eb1d3e2d8056922ef609cebc62c90e0 100644
--- a/Source/core/html/MediaError.idl
+++ b/Source/core/html/MediaError.idl
@@ -31,6 +31,6 @@
     const unsigned short MEDIA_ERR_NETWORK = 2;
     const unsigned short MEDIA_ERR_DECODE = 3;
     const unsigned short MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
-    [RuntimeEnabled=EncryptedMediaAnyVersion, DeprecateAs=MediaErrorEncrypted] const unsigned short MEDIA_ERR_ENCRYPTED = 5;
+    [DeprecateAs=MediaErrorEncrypted] const unsigned short MEDIA_ERR_ENCRYPTED = 5;

[ddorwin, 2014/09/25 16:45:26]

Instead, please replace with PrefixedEncryptedMedia. Alternatively, I'm fine
with just removing it at this point - it's been deprecated for a while and I
don't think anyone ever used the constant.

[MRV, 2014/09/26 02:57:16]

Done.

     readonly attribute unsigned short code;
 };