This is a reland of commit 7ae1d75869
TEST=manual, no watchOS SDK on bots yet.
Original change's description:
> watchOS target os
>
> - add support for --os=watchos | --os=watchos_simulator
> - do not depend on perfetto if dart_support_perfetto is false
> - change the default value for dart_support_perfetto to !is_watchos
>
> To minimize changes and to avoid modifying third-party zlib BUILD file, is_watchos implies is_ios for now.
>
> TEST=manual, no watchOS SDK on bots yet.
>
> Cq-Include-Trybots: luci.dart.try:vm-mac-debug-arm64-try,vm-mac-release-arm64-try
> Change-Id: If2130068ef546162a07a9ba53f94b11ff25fb565
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/415021
> Reviewed-by: Ryan Macnak <rmacnak@google.com>
> Commit-Queue: Ivan Inozemtsev <iinozemtsev@google.com>
Cq-Include-Trybots: luci.dart.try:vm-mac-debug-arm64-try,vm-mac-release-arm64-try
Change-Id: I2b50f7eb4da173627aeb4833b88a08712b278d9f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425523
Commit-Queue: Ivan Inozemtsev <iinozemtsev@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Ivan Inozemtsev
29e33b00d0