* chore: bump chromium in DEPS to 85.0.4182.1

* chore: bump chromium in DEPS to 85.0.4183.2

* chore: bump chromium in DEPS to 85.0.4183.4

* chore: bump chromium in DEPS to 85.0.4183.5

* update patches

* chore: bump chromium in DEPS to 85.0.4183.6

* chore: bump chromium in DEPS to 85.0.4183.7

* update patches

* chore: bump chromium in DEPS to 85.0.4183.8

* remove chromeos-only TtsControllerDelegate

Refs: https://chromium-review.googlesource.com/c/chromium/src/+/2255314
(cherry picked from commit f975f84a3c63204b3b20fe90e7f38731b59b0aef)

* rename GetHighContrastColorScheme -> GetPlatformHighContrastColorScheme

Refs: https://chromium-review.googlesource.com/c/chromium/src/+/2250224
(cherry picked from commit 014b4872584a0f6da4ab982255def175522cbe75)

* add max_xcode_version build var

Refs: https://chromium-review.googlesource.com/c/chromium/src/+/2264867
(cherry picked from commit 2c3b94f4973697b8017c601e100839...