[webkit-reviews] review requested: [Bug 21680] queryCommandValue("BackColor") returns rgb(0, 0, 0) for elements with transparent background : [Attachment 61136] fixed per Darin's comment

[bugzilla-daemon at webkit.org]

Ryosuke Niwa <rniwa at webkit.org> has asked  for review:
Bug 21680: queryCommandValue("BackColor") returns rgb(0,0,0) for elements with
transparent background
https://bugs.webkit.org/show_bug.cgi?id=21680

Attachment 61136: fixed per Darin's comment
https://bugs.webkit.org/attachment.cgi?id=61136&action=review

------- Additional Comments from Ryosuke Niwa <rniwa at webkit.org>
I moved the code to Editor::selectionCSSPropertyValue and made it to check
alpha value instead of checking against RGBA(0, 0, 0, 0) per Darin's feedback.