Similar bug in the past:  bug 733365 .

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b4fd0d82f26fe13a082454c1b46f7bed8010b2b1

commit b4fd0d82f26fe13a082454c1b46f7bed8010b2b1
Author: Henrik Kjellander <kjellander@chromium.org>
Date: Tue Oct 03 10:15:53 2017

Disable flaky org.chromium.chrome.browser.PopupTest#testPopupWindowsAppearWhenAllowed

BUG= 771103 
TBR=tedchoc@chromium.org

Change-Id: I9321fec54c0663ea137313e3eee4b2aecfc5bb2a
Reviewed-on: https://chromium-review.googlesource.com/697424
Reviewed-by: Henrik Kjellander <kjellander@chromium.org>
Commit-Queue: Henrik Kjellander <kjellander@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505999}
[modify] https://crrev.com/b4fd0d82f26fe13a082454c1b46f7bed8010b2b1/chrome/android/javatests/src/org/chromium/chrome/browser/PopupTest.java

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/01dddec5a9f83b12f50fb735ee6db65d96e56712

commit 01dddec5a9f83b12f50fb735ee6db65d96e56712
Author: Ted Choc <tedchoc@google.com>
Date: Wed Jun 06 16:51:41 2018

De-flake PopupTest#testPopupWindowsAppearWhenAllowed

In my local testing, the translate infobar was showing up
on the webpage because it uses latin placeholder text.

This reworks the infobar check to not check for an exact
count, but to look for infobars of a particular type.

BUG= 771103 

Change-Id: Ia6544c386e9e8288f7980a2c14e0b0fba0b14e98
Reviewed-on: https://chromium-review.googlesource.com/1087684
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#564925}
[modify] https://crrev.com/01dddec5a9f83b12f50fb735ee6db65d96e56712/chrome/android/javatests/src/org/chromium/chrome/browser/PopupTest.java

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a2a05c665e65e6602452e2b12cc0a8f828bf95a2

commit a2a05c665e65e6602452e2b12cc0a8f828bf95a2
Author: Ted Choc <tedchoc@google.com>
Date: Fri Jun 15 17:16:29 2018

Further deflake PopupTest#testPopupWindowsAppearWhenAllowed

This removes the other check that ensures a specific number of
infobars isn't showing.  This could be breaking if the translate
infobar showed up.

Stack:
java.lang.AssertionError: Criteria not met in allotted time.
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.assertTrue(Assert.java:41)
	at org.chromium.content.browser.test.util.CriteriaHelper.pollInstrumentationThread(CriteriaHelper.java:93)
	at org.chromium.content.browser.test.util.CriteriaHelper.pollUiThread(CriteriaHelper.java:172)
	at org.chromium.chrome.browser.PopupTest.testPopupWindowsAppearWhenAllowed(PopupTest.java:178)

BUG= 771103 

Change-Id: If439b42e6d0f63fa61cd75ea48bddb2e42571994
Reviewed-on: https://chromium-review.googlesource.com/1101830
Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567702}
[modify] https://crrev.com/a2a05c665e65e6602452e2b12cc0a8f828bf95a2/chrome/android/javatests/src/org/chromium/chrome/browser/PopupTest.java

After that last CL, there were no flakes over the weekend, so I'm going to call this done.

I looked at the last flake before it landed and it was showing the simplified view infobar, so it looks like my assumption was probably correct in the fix.