GitLab

Update to a recent version of AOSP master. The primary effect on
Chromium is that the android_aosp bot will now use a recent version of
clang when building chromium targets for host and thus we no longer need
to support using gcc 4.2 or 4.6 to compile host code here.

BUG=377684
NOTRY=true

Review URL: https://codereview.chromium.org/514653002

Cr-Commit-Position: refs/heads/master@{#292149}