chrome_public_test_apk.chrome_public_test_apk failing on chromium.android/Marshmallow Tablet Tester

Builders failed on: 
- Marshmallow Tablet Tester: 
  https://build.chromium.org/p/chromium.android/builders/Marshmallow%20Tablet%20Tester

https://uberchromegw.corp.google.com/i/chromium.android/builders/Marshmallow%20Tablet%20Tester/builds/8299
https://uberchromegw.corp.google.com/i/chromium.android/builders/Marshmallow%20Tablet%20Tester/builds/8307
https://uberchromegw.corp.google.com/i/chromium.android/builders/Marshmallow%20Tablet%20Tester/builds/8308

org.chromium.chrome.browser.ItemChooserDialogTest#testSelectAnItemAndRemoveTheSelectedItem
org.chromium.chrome.browser.ItemChooserDialogTest#testPairButtonDisabledOrEnabledAfterSelectedItemDisabledOrEnabled
org.chromium.chrome.browser.ItemChooserDialogTest#testPairButtonDisabledAfterSelectedItemRemoved
org.chromium.chrome.browser.ItemChooserDialogTest#testSelectOneItemThenDisableTheSelectedItem

are failing with:

android.util.AndroidRuntimeException: Animators may only be run on Looper threads
   at android.animation.ValueAnimator.start(ValueAnimator.java:1069)
   at android.animation.ValueAnimator.start(ValueAnimator.java:1117)
   at android.animation.ObjectAnimator.start(ObjectAnimator.java:852)
   at android.animation.AnimatorSet.start(AnimatorSet.java:586)
   at android.animation.StateListAnimator.start(StateListAnimator.java:187)
   at android.animation.StateListAnimator.setState(StateListAnimator.java:180)
   at android.view.View.drawableStateChanged(View.java:16971)
   at android.widget.TextView.drawableStateChanged(TextView.java:3960)
   at org.chromium.ui.widget.ButtonCompat.drawableStateChanged(ButtonCompat.java:133)
   at android.view.View.refreshDrawableState(View.java:17019)
   at android.view.View.setEnabled(View.java:7455)
   at android.widget.TextView.setEnabled(TextView.java:1564)
   at org.chromium.chrome.browser.ItemChooserDialog$ItemAdapter.setEnabled(ItemChooserDialog.java:310)
   at org.chromium.chrome.browser.ItemChooserDialog.setEnabled(ItemChooserDialog.java:618)
   at org.chromium.chrome.browser.ItemChooserDialogTest.testSelectOneItemThenDisableTheSelectedItem(ItemChooserDialogTest.java:626)