…=botond,jrmuizel

Differential Revision: https://phabricator.services.mozilla.com/D60046

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/85ffb23020709fdacd0f0b8e2d428178d5d56ef5

…egarding DeadlockDetector

CLOSED TREE

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/9b6bff2e52e3d28d999aa64d5a26b23cef6adbdd

…tor implementations. r=sotaro,mstange

For Draw (non-native) and CA modes, we include the per-tile
valid rect in the clip rect from the surface.

For DC (non-virtual) mode, a per-tile clip rect is set on the
visual for each tile, separate from the overall clip rect that
is set on the surface visual.

For DC (virtual) mode, the Trim API is used to remove pixels
in the virtual tile area that are outside the valid / clipped
region.

Note: Although the valid rect is now applied in the native
compositors, it's currently only based on the overall picture
cache bounding rect. Thus, with this patch there isn't any
noticeable performance improvement. Once this lands and is
working correctly, the follow up patch to calculate a smaller
valid region per-tile is a small amount of work.

Differential Revision: https://phabricator.services.mozilla.com/D61424

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/174d5be06caa95bdc01153cdd8cff5152f406b6f

With this patch, a minimal valid rect is calculated for each
picture cache tile. This is used to reduce the scissor rect
during tile rasterization, and the draw rect during tile
compositing, whenever there is a partial tile.

Differential Revision: https://phabricator.services.mozilla.com/D62177

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/b174d2f9072d36738d5dc484526d51a3a4f2ef82

…d r=gw

composite_simple() calculates combined dirty rect from all tile's dirty rect. But the combined dirty rect becomes invalid when there is an old tile that was dropped. The dropped tile's dirty rect is not counted in composite_simple().

Differential Revision: https://phabricator.services.mozilla.com/D62531

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/8e08016b3d0acf0c5c3116b087d5455df573d99c

…. r=gw,nical

Differential Revision: https://phabricator.services.mozilla.com/D61599

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/53650b8686a6cf9ff55b4f83e33042d97efd7a9d

… failures.

CLOSED TREE

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/7a4bbabfcc67993222cdf79ea8dd084adbd25352

…. r=gw,nical

Differential Revision: https://phabricator.services.mozilla.com/D61599

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/8f55490fb539d0472ae5a5982216991050033fcf

…ures.

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/63acd82c9360389a6dbd3bdf223e48bf32ca25c1