The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5465c4209eeef7235672d710b7ca404fb65cd899

commit 5465c4209eeef7235672d710b7ca404fb65cd899
Author: bsheedy <bsheedy@chromium.org>
Date: Tue Jun 12 17:16:40 2018

VR: Support clicking on native UI elements with fake controller actions

Adds support for VR instrumentation and browser tests to click on VR
browser UI elements by simulating the controller pointing at them and
clicking the button. This fully replaces the ability to send events
directly to native UI elements during tests.

Bug:  850721 
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_vr
Change-Id: I91c92669b2810af89a79cecc5d3d17135383b5be
Reviewed-on: https://chromium-review.googlesource.com/1091872
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Reviewed-by: Christopher Grant <cjgrant@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566476}
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShell.java
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellImpl.java
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/android/javatests/src/org/chromium/chrome/browser/vr_shell/TestVrShellDelegate.java
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/android/javatests/src/org/chromium/chrome/browser/vr_shell/VrShellDialogTest.java
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/android/javatests/src/org/chromium/chrome/browser/vr_shell/util/NativeUiUtils.java
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/browser/android/vr/vr_shell.cc
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/browser/android/vr/vr_shell.h
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/browser/android/vr/vr_shell_gl.cc
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/browser/android/vr/vr_shell_gl.h
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/browser/vr/ui.cc
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/browser/vr/ui.h
[modify] https://crrev.com/5465c4209eeef7235672d710b7ca404fb65cd899/chrome/browser/vr/ui_test_input.h