1297975 - "media.decoder.heuristic.dormant.timeout" in prefs_general.js is zero on all platforms

Status: RESOLVED INVALID

(Core :: Audio/Video: Playback, defect, P3)

Description

[Ting-Yu Lin [:TYLin] (PST, UTC-8)]

While fixing bug 1297333, I found that prefs_general.js isn't preprocessed like all.js. That is, "#if defined(XP_WIN)" [1] is ignored, which makes "media.decoder.heuristic.dormant.timeout" is defined to be 0 during automated testing on all platforms.

[1] https://dxr.mozilla.org/mozilla-central/rev/01748a2b1a463f24efd9cd8abad9ccfd76b037b8/testing/profiles/prefs_general.js#314-316

Comment 1

[Ting-Yu Lin [:TYLin] (PST, UTC-8)]

I reproduce this on a Linux machine by adding the following line to any mochitest file such as "layout/style/test/test_clip-path_polygon.html"

  info('Log', 'dormant timeout=' + SpecialPowers.getIntPref("media.decoder.heuristic.dormant.timeout"));

And running "./mach mochitest layout/style/test/test_clip-path_polygon.html" output "INFO Log | dormant timeout=0"

Comment 2

[Ting-Yu Lin [:TYLin] (PST, UTC-8)]

The pref media.decoder.heuristic.dormant.timeout was removed in bug 1311872 Part 1. https://hg.mozilla.org/mozilla-central/rev/4a4d45357bc7

We can close this bug now.