let's not switch to espresso unless we can get rid of waitUntilIdle after every interaction

AwTestTouchUtils and TouchCommon don't appear to use android.view.TouchUtils (yay?)

TestTouchUtils has a few users though, hopefully can be easily moved off it..?

Issue 512889 has been merged into this issue.

Doesn't look that bad: https://cs.chromium.org/search/?q=%5B%5Ew%5DTestTouchUtils%5C.%5Ba-z%5D+lang:java&sq=package:chromium&type=cs

A lot of these calls don't heavily depend on the underlying base class, perhaps we can just remove the inheritance.

What do you think about rescoping this bug to just removing the dependency on android.test.TouchUtils from TestTouchUtils?

Will take a stab at removing the dependency.

Should we mark the CL from #3 as un-duplicate now?  It would be nice to have just one touch handling class, so unifying those three does seem good.

If I recall, I tried unifying touchcommon and testtouchutils many, many moons ago and was bitten by some cases where touches needed to be dispatched via a different method.  Still unifying them does seem like a nice thing to do if we can.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/230003484cb7b9c5feeb2d8087a656cd2123561d

commit 230003484cb7b9c5feeb2d8087a656cd2123561d
Author: Peter Wen <wnwen@chromium.org>
Date: Thu Feb 01 18:55:50 2018

Android: Remove dependency on TouchUtils

android.test.TouchUtils is deprecated.

Bug:  807766 
Change-Id: Ib30f91f13afc9a1f7daf19a144dbd43eb06917b7
Reviewed-on: https://chromium-review.googlesource.com/897912
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#533758}
[modify] https://crrev.com/230003484cb7b9c5feeb2d8087a656cd2123561d/content/public/test/android/javatests/src/org/chromium/content/browser/test/util/TestTouchUtils.java
[modify] https://crrev.com/230003484cb7b9c5feeb2d8087a656cd2123561d/content/public/test/android/javatests/src/org/chromium/content/browser/test/util/TouchCommon.java