GitLab

Testing:
- For GN, splits install and crash on start-up just like non-split version
- For GYP, tested with:
  - component=shared_library, component=static_library
  - gyp_managed_install=1, 0
  - load_library_from_zip_file=1, 0

BUG=484797

Review URL: https://codereview.chromium.org/1137313003

Cr-Commit-Position: refs/heads/master@{#330523}