Android: Get rid of ContentViewCore.getViewportWidth/HeightPix

The 2 remaining callsites can use the corresponding content view
directly to get the physical width/height. This CL does that, and removes
the interfaces from ContentViewCore.

Bug: 598000
Change-Id: I29a15a85eae58ded74dcbd6b00b8ba35f49c94fa
Reviewed-on: https://chromium-review.googlesource.com/945185
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Reviewed-by: Maria Khomenko <mariakhomenko@chromium.org>
Commit-Queue: Jinsuk Kim <jinsukkim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#541004}
6 files changed