Issue 821854  has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/42c00f868654f9d32cf9cab5d23a360847d682ab

commit 42c00f868654f9d32cf9cab5d23a360847d682ab
Author: Tibor Goldschwendt <tiborg@chromium.org>
Date: Thu Apr 05 21:53:33 2018

[vr] Remove BasicNativePages's top offset when browser controls hidden

While in VR we hide the browser controls. This leads to an offset at the
top of the history page. And this results in distorted graphics showing
up due to an ininitialized buffer. To fix that move the UI up while in
VR.

Bug:  818817 
Change-Id: I2e6113f410f644447a741ae7d339d2c8454db2f5
Reviewed-on: https://chromium-review.googlesource.com/963502
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Tibor Goldschwendt <tiborg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548573}
[modify] https://crrev.com/42c00f868654f9d32cf9cab5d23a360847d682ab/chrome/android/java/src/org/chromium/chrome/browser/BasicNativePage.java
[modify] https://crrev.com/42c00f868654f9d32cf9cab5d23a360847d682ab/chrome/android/java/src/org/chromium/chrome/browser/tab/EmptyTabObserver.java
[modify] https://crrev.com/42c00f868654f9d32cf9cab5d23a360847d682ab/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
[modify] https://crrev.com/42c00f868654f9d32cf9cab5d23a360847d682ab/chrome/android/java/src/org/chromium/chrome/browser/tab/TabObserver.java

Fix verified in build 67.0.3396.29 beta.  Looks good.