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* Make browser auto managed so that it behaves like chrome when created.
* Install event rewriter so that function keys are properly mapped.
* Install new window delegate that creates browser and SKV

Bug:979440
Test: None

Change-Id: Ib672693d61ad6b0d2ca339ee6259f1514b38e894
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1706641
Commit-Queue: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Jun Mukai <mukai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#678473}