Add lcd_density to StartArcMiniContainerRequest

This will be used to inject the density from chrome
to Android.

BUG=b:66995734
TEST=manual

Change-Id: I4cc7e1387389e1cb5c7e099584c12763ed1c5988
Reviewed-on: https://chromium-review.googlesource.com/1197393
Commit-Ready: Mitsuru Oshima <oshima@chromium.org>
Tested-by: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Yusuke Sato <yusukes@chromium.org>
1 file changed