VR: Further split common code from Android-specific code.

VR: Further split common code from Android-specific code.

Separate the UI to browser interface, to drop all Android awareness.
Also, fix a few instances of code that doesn't compile on linux.

The only thing needed now to compile tests on linux is a reference from
src/BUILD.gn, and exposing a few libraries and string resources exposed
to linux.

BUG=727396
Change-Id: I7c5a840b0820617a674b9668ebbb538e0ea62cfc
Reviewed-on: https://chromium-review.googlesource.com/521325
Commit-Queue: Christopher Grant <cjgrant@chromium.org>;
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>;
Reviewed-by: Yash Malik <ymalik@chromium.org>;
Cr-Original-Commit-Position: refs/heads/master@{#477304}
Review-Url: https://codereview.chromium.org/2929483003 .
Cr-Commit-Position: refs/branch-heads/3112@{#193}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed: https://chromium.googlesource.com/chromium/src/+/b7d24a4f80036ac2bfdaf43b6394e7f2461f5bdd

[cjgrant, 2017-06-06 18:18:22]

Description was changed from

==========
VR: Further split common code from Android-specific code.

Separate the UI to browser interface, to drop all Android awareness.
Also, fix a few instances of code that doesn't compile on linux.

The only thing needed now to compile tests on linux is a reference from
src/BUILD.gn, and exposing a few libraries and string resources exposed
to linux.

BUG=727396

Change-Id: I7c5a840b0820617a674b9668ebbb538e0ea62cfc
Reviewed-on: https://chromium-review.googlesource.com/521325
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Reviewed-by: Yash Malik <ymalik@chromium.org>
Cr-Commit-Position: refs/heads/master@{#477304}
(cherry picked from commit a6215bc06ce7fc233fe1cedab27988d6cbd5b9c4)
==========

to

==========
VR: Further split common code from Android-specific code.

Separate the UI to browser interface, to drop all Android awareness.
Also, fix a few instances of code that doesn't compile on linux.

The only thing needed now to compile tests on linux is a reference from
src/BUILD.gn, and exposing a few libraries and string resources exposed
to linux.

BUG=727396

Change-Id: I7c5a840b0820617a674b9668ebbb538e0ea62cfc
Reviewed-on: https://chromium-review.googlesource.com/521325
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Reviewed-by: Yash Malik <ymalik@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#477304}
Review-Url: https://codereview.chromium.org/2929483003 .
Cr-Commit-Position: refs/branch-heads/3112@{#193}
Cr-Branched-From:
b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed:
https://chromium.googlesource.com/chromium/src/+/b7d24a4f80036ac2bfdaf43b6394...
==========

[cjgrant, 2017-06-06 18:18:24]

Committed patchset #1 (id:1) manually as
b7d24a4f80036ac2bfdaf43b6394e7f2461f5bdd.