[iOS] Add new destructive tint semantic color

Bug: 974255
Change-Id: I06cb71fc016ef975b82992a2e01adc05940857fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1692752
Reviewed-by: Mark Cogan <marq@chromium.org>
Commit-Queue: Robbie Gibson <rkgibson@google.com>
Cr-Commit-Position: refs/heads/master@{#675984}
13 files changed