The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/99913d0de1ae13773c571a77445571c8fbd2215f

commit 99913d0de1ae13773c571a77445571c8fbd2215f
Author: mthiesse <mthiesse@chromium.org>
Date: Tue Jun 13 20:53:14 2017

VR: Send separate down and up events for controller clicks.

Now with 100% more down and up.
https://www.youtube.com/watch?v=qJdMjRHRLfg

BUG= 732917 

Review-Url: https://codereview.chromium.org/2936853003
Cr-Commit-Position: refs/heads/master@{#479143}

[modify] https://crrev.com/99913d0de1ae13773c571a77445571c8fbd2215f/chrome/browser/android/vr_shell/vr_shell_gl.cc
[modify] https://crrev.com/99913d0de1ae13773c571a77445571c8fbd2215f/chrome/browser/android/vr_shell/vr_shell_gl.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2a36d1978df99e98cf8696c5824bb8050f514928

commit 2a36d1978df99e98cf8696c5824bb8050f514928
Author: mthiesse <mthiesse@chromium.org>
Date: Wed Jun 14 16:00:14 2017

VR: Add support for mouse down/up events for Android NativePages.

BUG= 732917 

Review-Url: https://codereview.chromium.org/2942623002
Cr-Commit-Position: refs/heads/master@{#479402}

[modify] https://crrev.com/2a36d1978df99e98cf8696c5824bb8050f514928/chrome/browser/android/vr_shell/android_ui_gesture_target.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2acdcced51403c0b6d0ed515f0e86d432a901839

commit 2acdcced51403c0b6d0ed515f0e86d432a901839
Author: mthiesse <mthiesse@chromium.org>
Date: Thu Jun 15 15:56:36 2017

VR: Stop sending mouse moves while mouse is down to content window.

The VR controller is way too noisy/sensitive and triggers drag events
when you're trying to click links. As a temporary workaround, stop sending
move events to the content window when the 'mouse' is down.

BUG= 732917 

Review-Url: https://codereview.chromium.org/2944453002
Cr-Commit-Position: refs/heads/master@{#479720}

[modify] https://crrev.com/2acdcced51403c0b6d0ed515f0e86d432a901839/chrome/browser/android/vr_shell/vr_shell_gl.cc

Am I understand right, that neither selection nor drawing with the controller are still not supported in ChromeVR?

That's right, we had to prevent selection and drawing for now.

Verified in Chrome Canary 61.0.3138.0