Generate getters/setters for alignment properties.

Currently, alignment properties are stored as 'storage_only' fields,
which means they don't have generated getters/setters.

This patch changes them to 'external' fields so that their getters
and setters can be generated as well.

Diff: https://gist.github.com/df1b29ac0e0f5220e52fc3f75785a0bf/revisions

Bug: 628043
Change-Id: Ia41027088f283e90d22d0e556a24a723c62ad9d6
Reviewed-on: https://chromium-review.googlesource.com/541241
Commit-Queue: Darren Shen <shend@chromium.org>
Reviewed-by: nainar <nainar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#481462}
2 files changed