GfxInfo generally wants to be main-thread, so WebGL (especially
out-of-process) runs into problems sometimes.
Also remove obsolete FEATURE_WEBGL_MSAA.
Differential Revision: https://phabricator.services.mozilla.com/D91208
The mathml reftest pref needs to be added at the same time because the test needs that pref with the new scrollbar code to pass, but it fails with that pref with the old scrollbar code. Since that test uses the minimum scale, which is only valid with overlay scrollbars, it is correct to do so.
Differential Revision: https://phabricator.services.mozilla.com/D91243
cupsGetDestMediaDefault seems to not be returning the correct defaults,
so this patch retrieves the default media through the IPP attribute
instead, in hopes that this will provide more accurate defaults.
Differential Revision: https://phabricator.services.mozilla.com/D91376
Currently, target ranges do not extend the ranges even when deleting empty
parent elements of the range. Therefore, the frag indicating whether empty
parents removed or not is not necessary for the methods.
Differential Revision: https://phabricator.services.mozilla.com/D90542
When joining 2 block elements, the left block element may ends with invisible
`<br>` element or the right block element may follows an invisible `<br>`
element if it's a descendant of the left block element. In those cases, the
invisible `<br>` element must be start of the target range of the joining
block elements since it'll be deleted.
Differential Revision: https://phabricator.services.mozilla.com/D90541
GfxInfo generally wants to be main-thread, so WebGL (especially
out-of-process) runs into problems sometimes.
Also remove obsolete FEATURE_WEBGL_MSAA.
Differential Revision: https://phabricator.services.mozilla.com/D91208
Keyboard arrow key scrolls go through PresShell::ScrollLine/ScrollCharacter. When these look for a scroll frame they eventually end up at nsLayoutUtils::GetNearestScrollableFrameForDirection.
nsLayoutUtils::GetNearestScrollableFrameForDirection does two things wrong when determining if the scroll frame is scrollable by apz: it disallows overflow hidden scrolling, and it uses GetAvailableScrollingDirections which is based on the layout scroll range.
Using GetAvailableScrollingDirectionsForUserInputEvents takes into account both of these factors.
GetNearestScrollableFrameForDirection is used by:
-gfx/layers/apz/src/FocusTarget.cpp
-EventStateManager::DoContentCommandScrollEvent
-PageMove, ScrollPage, ScrollLine, ScrollCharacter, CompleteScroll of PresShell
All of these should want the more apz aware function.
Differential Revision: https://phabricator.services.mozilla.com/D90498
When a tab is in the background, its document visibility would become invisible even if a tab owns a video which is visible because of being used in picture in picture mode.
When a document changes its visibility, the wakelock would change its lockstate from `lock-foreground` to `lock-background`. For `video-playing` wakelock topic, we would only request a real platform lock for `lock-foreground` because we don't want to prevent screen from sleeping if the video is invisible.
Therefore, considering if video is being used in picture in picture mode, when determining the wakelock's visible state. If video is still being used in picture in picture mode, then we would treat wakelock as if it's in foreground in order to keep a screen lock.
Differential Revision: https://phabricator.services.mozilla.com/D90781
We don't need `autoplay_would_be_allowed_count` and `autoplay_would_not_be_allowed_count`, so we can remove all related codes.
Differential Revision: https://phabricator.services.mozilla.com/D83227
We would like to remove `page_had_media_count` and use a new probe `in_page_count` to record the total number of top level content documents using media.
Therefore, we would rename WindowContext's `DocTreeHadAudibleMedia` to `DocTreeHadMedia` in order to support the new usage.
In the future, if we want to know something like "the percentage of media element is being used for MSE/EME?", then this scalar can be the base and used to calculate the answser.
Differential Revision: https://phabricator.services.mozilla.com/D83225
