Differential Revision: https://phabricator.services.mozilla.com/D52339

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/093ad83d0ab40951603cb3df46dc29877d51ca75

…tting. r=jfkthame

Differential Revision: https://phabricator.services.mozilla.com/D52441

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/d967ac6c56aeec99c2fba3814c8550a1c5971384

…tion. r=nical

Add a first pass at invalidation debugging infrastructure. Also
tidy up the locations that invalidate into a common method, that
sets the invalidation reason.

Differential Revision: https://phabricator.services.mozilla.com/D52128

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/260dfcecdb6287707bd90040a4d2bf7988274ef1

…. r=sotaro

Differential Revision: https://phabricator.services.mozilla.com/D52493

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/e05f10f48f524d429d9eade6ee8d7001ab32061f

…e dependencies. r=nical

This reduces the amount of invalidation on some pages very significantly.
It also fixes a number of cases where picture caching "fails", resulting
in everything invalidating every frame.

Differential Revision: https://phabricator.services.mozilla.com/D52275

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/afa3fdcab69155f37dc35daa0cdb22dbb849b907

…culling. r=kvark

This adds a regression test for bug #1594567.

Differential Revision: https://phabricator.services.mozilla.com/D52619

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/31cc5ca631c7a7618b7e5027dd56d6906b1bbd1b

…kvark

Instead of creating a picture caching slice for any content that
is fixed position, also check if the clip(s) for the cluster are
fixed position or anchored to the scroll root.

This prevents WR creating slices for parallax style effects. There's
not much point in doing this anyway, since those slices will invalidate
due to the spatial node of the clip changing during scrolling. This
also allows subpixel AA to be enabled in more situations.

Differential Revision: https://phabricator.services.mozilla.com/D52621

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/03ab38bbbd2e4be75170cdca08fcc7bd519e47c2

Differential Revision: https://phabricator.services.mozilla.com/D52303

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/7019a4a1fe39964f90b14158e84d05d727d888bd

…ts in the profiler HUD. r=gw

It's a more useful number since we also report the number of existing and rasterized picture cache tiles.
Also bump the expected number of alpha passes up to 2 since it is rather common.

Differential Revision: https://phabricator.services.mozilla.com/D52134

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/7ce4cf2b6d61a4241708fec5e22f634192a1fe90

In Draw compositor mode, tiles are placed into a bucket based on
the tile kind and/or opacity. This simplifies the renderer code
for this mode, which uses the z-buffer to reject opaque tiles.

In native compositor mode, the tiles need to be submitted in the
correct draw order. Opacity is a property of the native surface,
and should not affect the order the tiles are added to the visual
tree of the native compositor.

Differential Revision: https://phabricator.services.mozilla.com/D52933

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/e7837d7a78c67fb122f6f4685eb0e2f06841b621

…to webrender_api. r=kvark

Differential Revision: https://phabricator.services.mozilla.com/D52686

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/24b134b55c5f70eab758d74682fc1f6ca829e0ff

… (breaks the build) r=jrmuizel

Differential Revision: https://phabricator.services.mozilla.com/D53056

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/fb4b9875d44d472f27ea1df1066e1f359b28a053