Proposal: an option to paint the setVisible(false)'d mozbrowser iframe with a random solid color, or chessboard pattern

[Tim Chien]

Hi all,

(send it to dev-b2g, the right place)

We are currently throw away what's painted in the iframe if the frame
is being set to not visible. Gaia devs have hard time debugging when
they work on those and forget to (temporary) set a background color to
those frames.

Would it be possible to have a pref in Gecko, when enabled, turn those
iframes into a random solid color, or chessboard pattern? I was
originally thinking about proposing that as a default behavior, but
then I thought that would probably cost memory (which defeat the
purpose at first place) and we really don't want our users see random
color/chessboard pattern flashes on some transitions.

Does the pref() way sounds good?


--
Tim Guan-tin Chien, Engineering Manager and Front-end Lead, Firefox
OS, Mozilla Corp. (Taiwan)

[Justin Lebar]

This sounds like a decent idea to me. File a bug?

[Tim Chien]

https://bugzilla.mozilla.org/show_bug.cgi?id=876365

Thank you!