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When you run a debug build (for example to run tests) we print this message: [Child 26078] WARNING: ENSURE_MAIN_PROCESS failed. Cannot SetBool from content process: dom.gamepad.extensions.enabled: file /home/ehsan/moz/src3/modules/libpref/Preferences.cpp, line 1561 This is coming from <http://searchfox.org/mozilla-central/rev/9a3ab17838f039aab023837d905115f8990e442e/gfx/vr/VRManager.cpp#99> added in bug 1299932. Daosheng, can you please fix this? Thanks!
Sure, this is my mistake.
Note that the SetBool function returns without doing anything in the content process, so there may be a logic bug hiding somewhere... Thanks for looking into it!
(In reply to :Ehsan Akhgari from comment #2) > Note that the SetBool function returns without doing anything in the content > process, so there may be a logic bug hiding somewhere... > > Thanks for looking into it! This is because I set this Preference in the GPU process, not the Content process. Probably, we need to modify the warning message as well.
Comment on attachment 8814592 [details] Bug 1320343 - Avoid to set Preference in the GPU process; https://reviewboard.mozilla.org/r/95772/#review96254 LGTM, Thanks!
Attachment #8814592 - Flags: review?(kgilbert) → review+
Pushed by firstname.lastname@example.org: https://hg.mozilla.org/integration/autoland/rev/0f7296d6e742 Avoid to set Preference in the GPU process; r=kip
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