This is never used.

mshtml: Don't assume that nsIDOMHTMLElement inherits from nsIDOMNode in HTMLDocument_createStyleSheet.

This will change after the next Gecko update.

Fixed volume control in EveryonePiano.

This can't possibly do anything, since we fail texture creation for
WINED3DFMT_UNKNOWN. If texture creation with D3DFMT_UNKNOWN is actually
supposed to work, we should probably pick an appropriate format at creation,
instead of during CopyRects(). This code has existed in some form or another
since the initial version in commit 850a9429.
No tests, of course.