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- Picked up current Safari/ and AppleWebKit/ version numbers from Safari User Agent.
- Deleted version_map[] entries for iOS versions that Chrome no longer supports.

This was last updated for iOS 12 in https://chromium-review.googlesource.com/c/chromium/src/+/1102485

Bug: 1001261
Change-Id: I337b736d279c86727302e7a5828602bd8bfae787
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1788504Reviewed-by: Eugene But <eugenebut@chromium.org>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Peter Lee <pkl@chromium.org>
Cr-Commit-Position: refs/heads/master@{#694279}