GitLab

For extensions, add the LaunchPlatformAppWithFilePaths interface to
launch the app by issuing an onLaunched event with the contents of
file_paths.

BUG=1090211

Change-Id: I92db10bac0d64e3c108d4aa67770a9b5f35d30f3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2264080Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Commit-Queue: Nancy Wang <nancylingwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#805637}