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This has the main effect of rolling the ld version to pick up a fix to
deterministic builds. This has the side effect of including the 10.14 SDK so
that it's easier to roll the SDK that Chrome uses to build.

Bug: 330262, 943106
Change-Id: I747c2d1d0f3a588548df6b92fdac27beccf45d71
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1711044Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Erik Chen <erikchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#679322}