Bug 144470 – Media control volume slider is opaque

• Status: RESOLVED
• Resolution: FIXED
• Component: Media

[Roger Fong]

rdar://problem/20770350

[Roger Fong]

Created attachment 252091 [details]
patch

Seeing as all the mix-blend-modes create new compositing regions on the controls anyways, the original z-index: 0 is now just hurting, not helping.

The fact that the volume slider blend doesn't work while all the other blends do probably has something to do with the fact that it's rotated off the main control bar.

[Roger Fong]

Simon gave me the verbal go ahead over irc.
http://trac.webkit.org/changeset/183687

[Alexey Proskuryakov]

It looks like this broke tests: <https://build.webkit.org/results/Apple%20Mavericks%20Debug%20WK1%20(Tests)/r183688%20(12422)/results.html>.

Roger is not on IRC, rolling out.

[WebKit Commit Bot]

Re-opened since this is blocked by bug 144505

[Roger Fong]

By removing a CSS property? That should never be the case. Sounds like a bug in the compositing code.

[Alexey Proskuryakov]

The assertions went away after the rollout, so yes.

[Roger Fong]

Re-landed with test expectations: http://trac.webkit.org/changeset/183820

Bug to track failures: https://bugs.webkit.org/show_bug.cgi?id=144630

[Alexey Proskuryakov]

Is this really the right thing to do? We lose test coverage for all affected tests, not to mention that CrashReporter will make other tests more flaky.

Also, we still assert on fast/regions/inline-block-inside-anonymous-overflow.html and compositing/regions/transform-transparent-positioned-video-inside-region.html