Generate getters/setters for orphans and widows.

Currently, the orphans and widows property are 'storage_only' fields, so
they have no generated public getters/setters. This patch changes them to
'primitive' fields so that their getters/setters can be generated as well.

Diff of generated files:
https://gist.github.com/darrnshn/f98f90a4ed74459ade6a99d568ae0b6c/revisions

BUG=628043

Review-Url: https://codereview.chromium.org/2895153002
Cr-Commit-Position: refs/heads/master@{#474591}
2 files changed