The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3e70c451f31134bffd1fe4d06d30d924db3e9e8c

commit 3e70c451f31134bffd1fe4d06d30d924db3e9e8c
Author: Matthew Jones <mdjones@chromium.org>
Date: Mon Jul 16 22:03:07 2018

Hide bottom toolbar while keyboard is showing

This patch adds the ability of the bottom toolbar to hide while the
keyboard is showing. This patch is able to use existing simpler infra
(KeyboardVisibilityListener) to solve this problem because we are
trying to hide UI rather than show it on top of the keyboard. The
challenge with showing UI above the keyboard is the inconsistency of
the signals that we receive (with keyboard modes like PAN, RESIZE,
etc.). If we receive no visibility signal, the keyboard simply draws
on top of the bottom toolbar (making it invisible). In the more
reliable case where the screen is resized, we hide the bottom
toolbar's components and tell the renderer that the bottom controls
height is 0.

Bug:  852109 , 860071 
Change-Id: I056c47bea33dd426f3b488925ff169735ac95c2f
Reviewed-on: https://chromium-review.googlesource.com/1125326
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Reviewed-by: Pedro Amaral <amaralp@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575443}
[modify] https://crrev.com/3e70c451f31134bffd1fe4d06d30d924db3e9e8c/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/ToolbarSwipeLayout.java
[modify] https://crrev.com/3e70c451f31134bffd1fe4d06d30d924db3e9e8c/chrome/android/java/src/org/chromium/chrome/browser/compositor/scene_layer/ScrollingBottomViewSceneLayer.java
[modify] https://crrev.com/3e70c451f31134bffd1fe4d06d30d924db3e9e8c/chrome/android/java/src/org/chromium/chrome/browser/toolbar/BottomToolbarCoordinator.java
[modify] https://crrev.com/3e70c451f31134bffd1fe4d06d30d924db3e9e8c/chrome/android/java/src/org/chromium/chrome/browser/toolbar/BottomToolbarMediator.java
[modify] https://crrev.com/3e70c451f31134bffd1fe4d06d30d924db3e9e8c/chrome/android/java/src/org/chromium/chrome/browser/toolbar/BottomToolbarModel.java
[modify] https://crrev.com/3e70c451f31134bffd1fe4d06d30d924db3e9e8c/chrome/android/java/src/org/chromium/chrome/browser/toolbar/BottomToolbarViewBinder.java
[modify] https://crrev.com/3e70c451f31134bffd1fe4d06d30d924db3e9e8c/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarManager.java