Roll Flutter Engine from 2d8cff44261b to 840bcc3449ff (11 revisions) (#131101)

https://github.com/flutter/engine/compare/2d8cff44261b...840bcc3449ff

2023-07-21 skia-flutter-autoroll@skia.org Roll ANGLE from f586ec98d924 to 938ee1e80fc8 (1 revision) (flutter/engine#43912)
2023-07-21 skia-flutter-autoroll@skia.org Roll ANGLE from 085f25bbb1e3 to f586ec98d924 (1 revision) (flutter/engine#43908)
2023-07-21 skia-flutter-autoroll@skia.org Roll Fuchsia Mac SDK from WH3AaCa4DtVERww1v... to rMFZIJYvVmXEBGCay... (flutter/engine#43907)
2023-07-21 jason-simmons@users.noreply.github.com [Impeller] Do not use clear color optimization if the subpass is being collapsed into its parent (flutter/engine#43878)
2023-07-21 skia-flutter-autoroll@skia.org Roll Skia from 2e28fe9de378 to 359d4726e423 (1 revision) (flutter/engine#43906)
2023-07-21 bdero@google.com [Impeller] Disable color attachment removal for clips on VK (flutter/engine#43905)
2023-07-21 bdero@google.com [Impeller] Add a way to query the gfx backend type. (flutter/engine#43837)
2023-07-21 skia-flutter-autoroll@skia.org Roll ANGLE from 82d68c577b1d to 085f25bbb1e3 (1 revision) (flutter/engine#43904)
2023-07-21 skia-flutter-autoroll@skia.org Roll ANGLE from 2e190280f5c5 to 82d68c577b1d (1 revision) (flutter/engine#43901)
2023-07-21 skia-flutter-autoroll@skia.org Roll Skia from 497326dc66cd to 2e28fe9de378 (2 revisions) (flutter/engine#43900)
2023-07-21 skia-flutter-autoroll@skia.org Roll Skia from 1f84e9d51bba to 497326dc66cd (1 revision) (flutter/engine#43899)

Also rolling transitive DEPS:
  fuchsia/sdk/core/mac-amd64 from WH3AaCa4DtVE to rMFZIJYvVmXE

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC bdero@google.com,rmistry@google.com,zra@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

bin/internal/engine.version

-2d8cff44261bc8e04f204ca27da7d4554964b4bb
+840bcc3449ff54cefe4b9b250d8daa5ada243d6a

bin/internal/fuchsia-mac.version

-WH3AaCa4DtVERww1valVty052zggPUiRPskIJ4kgG9AC
+rMFZIJYvVmXEBGCay-wjvn6m1nVIU-KymF2MIuEo6KkC