aura: makes ~WindowPortLocal get Env from window

Rather than Env::GetInstance(). This ensures the right instance is used.

BUG=847992
TEST=covered by tests

Change-Id: I9b75458c1e4d21402ef2e58833c57ff9a289b7a0
Reviewed-on: https://chromium-review.googlesource.com/1176062
Reviewed-by: Michael Wasserman <msw@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583296}
1 file changed