Updating XTBs based on .GRDs from branch master

Cr-Original-Commit-Position: refs/heads/master@{#466102}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: c2c4dc334bd323be6096f6bec6836e0d7be700c6
52 files changed
tree: 5d0a15000a4947ded4cfb0eb0c90cc433ad95473
  1. android/
  2. core/
  3. proto/
  4. resources/
  5. tools/
  6. BUILD.gn
  7. OWNERS
  8. policy_export.h