[am] Fix for the scroll jumping bug
[am] Fix for the scroll jumping bug

Before: https://screencast.googleplex.com/cast/NDkzNTkxMjUwNzA0NzkzNnwxNWZlM2U2Yy1hMg
After: https://screencast.googleplex.com/cast/NTI4OTkzMzUwNzkxOTg3MnwwMzAyYTgzZC02ZA

Got the fix from https://stackoverflow.com/questions/17974108/how-can-i-prevent-the-browser-from-scrolling-on-top-of-the-page-when-clicking-th/17974351#17974351

Bug: skia:10733
Change-Id: I192e0e1c150ac306a33e92112397719544dc995f
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/317202
Reviewed-by: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot