1152080 - [e10s] Flash disappears when the Flash overlaps the element(position:fixed) even a little

Status: RESOLVED FIXED

(Core :: Graphics: Layers, defect)

Description

[Alice0775 White]

Attachment: screenshot

This does not happen without e10s.

Steps To Reproduce:
1. Resize browser window W=750px
2. Open http://www.d-toybox.com/studio/weblog/show.php?mode=single;id=2013031500
3. Scroll page

Actual Results:
Flash disappears when the Flash overlaps the element(position:fixed) even a little

Expected Results:
Flash should be clipped properly

Regression pushlog: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=741a15659b09&tochange=5969eb0fe8b5

Triggered by: Bug 1095754

Comment 1

[Jim Mathies [:jimm]]

<jimm> stephend: is this a case where the content shifts and the plugin paints weird, or is this a case where the plugin disappears?
<stephend> jimm: the latter, on https://saucelabs.com/jobs/9706d6b20166408d8ddb1c206c23f273
<stephend> just toggling the web console makes it vanish
<stephend> jimm: http://screencast.com/t/81ZHKHOL2G
<stephend> (oh, the irony in using a flash screencast to show the problem)
<jimm> ah ok, that's a different bug
<jimm> let me find it
<stephend> great; thanks again!
<stephend> (this seems pretty recent, too)
<stephend> I use this all the time
* geekboy is now known as geekboy|afk
<jimm> stephend: maybe bug 1152080 ?

Comment 2

[Alice0775 White]

Attachment: scereencast b.swf

This page[1] is also affected.

[1] http://www.nicovideo.jp/watch/sm26202365

Comment 3

[Jim Mathies [:jimm]]

Alice, are you still seeing this? I'm not currently.

Comment 4

[Alice0775 White]

(In reply to Jim Mathies [:jimm] from comment #3)
> Alice, are you still seeing this? I'm not currently.

I can still reproduce the problem
https://hg.mozilla.org/mozilla-central/rev/d45440221297
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0 ID:20150626030206

Comment 5

[Jim Mathies [:jimm]]

Ok thanks. I'll try to put together a simplified test case.

Comment 6

[Jim Mathies [:jimm]]

Attachment: patch v.1

Slight error on my part in handling these rects, I treated them as rects that should be clipped vs. visible rects that should be accumulated.

Comment 7

[Jim Mathies [:jimm]]

thanks!

Comment 8

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/be020690f032

Comment 9

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/integration/mozilla-inbound/rev/be020690f032

Comment 10

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/mozilla-central/rev/be020690f032