The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/750082e000c568fae19099fd0544aed89c60a41f

commit 750082e000c568fae19099fd0544aed89c60a41f
Author: Ryan Landay <rlanday@chromium.org>
Date: Tue Jun 12 16:50:13 2018

Fix bug toggling incognito mode while scrolling in Android tab switcher

The Android horizontal tab switcher can get messed up if the incognito toggle
button is tapped while the tabs are scrolling. This is because the animation
works by sliding the centered tab and the one on either side off-screen, and
then sliding them back on if incognito mode is toggled again. If the tabs are
scrolling, the centered tab can change between the two animations, which means
we can fail to slide the off-screen tabs back to the right place.

This CL fixes the issue by making sure we stop scrolling before we run the
switch away animation.


Bug:  851745 
Change-Id: I686f79317870f8160a044996a5fcd33186966a34
Reviewed-on: https://chromium-review.googlesource.com/1096447
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Commit-Queue: Ryan Landay <rlanday@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566466}
[modify] https://crrev.com/750082e000c568fae19099fd0544aed89c60a41f/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/phone/stack/NonOverlappingStack.java

This bug requires manual review: M68 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), kariahda@(iOS), bhthompson@(ChromeOS), abdulsyed@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Please verify the fix in canary

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/843af6eda3f0b64c64eca7ed639bc22178f6125d

commit 843af6eda3f0b64c64eca7ed639bc22178f6125d
Author: Ryan Landay <rlanday@chromium.org>
Date: Thu Jun 14 21:07:11 2018

Fix bug toggling incognito mode while scrolling in Android tab switcher

The Android horizontal tab switcher can get messed up if the incognito toggle
button is tapped while the tabs are scrolling. This is because the animation
works by sliding the centered tab and the one on either side off-screen, and
then sliding them back on if incognito mode is toggled again. If the tabs are
scrolling, the centered tab can change between the two animations, which means
we can fail to slide the off-screen tabs back to the right place.

This CL fixes the issue by making sure we stop scrolling before we run the
switch away animation.


Bug:  851745 
Change-Id: I686f79317870f8160a044996a5fcd33186966a34
Reviewed-on: https://chromium-review.googlesource.com/1096447
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Commit-Queue: Ryan Landay <rlanday@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#566466}(cherry picked from commit 750082e000c568fae19099fd0544aed89c60a41f)
Reviewed-on: https://chromium-review.googlesource.com/1101739
Reviewed-by: Ryan Landay <rlanday@chromium.org>
Cr-Commit-Position: refs/branch-heads/3440@{#366}
Cr-Branched-From: 010ddcfda246975d194964ccf20038ebbdec6084-refs/heads/master@{#561733}
[modify] https://crrev.com/843af6eda3f0b64c64eca7ed639bc22178f6125d/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/phone/stack/NonOverlappingStack.java