Revert "[Android] Keep top controls visible until an update from a Tab."

Revert "[Android] Keep top controls visible until an update from a Tab."

This reverts commit 2e2ed096513eb9e7168498fd167dacc2888b338d, because
after commit https://codereview.chromium.org/2106753004, setPositionForTab
is no longer called if there is no change in content offset.

BUG=660935
R=tedchoc@chromium.org

Committed: https://chromium.googlesource.com/chromium/src/+/6eea3cdf56c513aa5cc9d08522d1954ba634113b

[Ian Wen, 2016-11-18 00:58:59]

ianwen@chromium.org changed reviewers:
+ aelias@chromium.org, bokan@chromium.org, tedchoc@chromium.org

[Ian Wen, 2016-11-18 00:58:59]

tedchoc@ for review. aelias@ and bokan@ for cc.

This CL makes M55 to restore Chrome's behavior before M53, where top controls
will be in "overlay" mode when users return to Chrome.

Please note in M56, such overlay behavior is removed, and top controls are
permanently visible when Chrome is restarted.

[Ian Wen, 2016-11-18 01:01:40]

Description was changed from

==========
Revert "[Android] Keep top controls visible until an update from a Tab."

This reverts commit 2e2ed096513eb9e7168498fd167dacc2888b338d, because
setPositionForTab is no longer called if there is no change in content
offset.

BUG=660935
==========

to

==========
Revert "[Android] Keep top controls visible until an update from a Tab."

This reverts commit 2e2ed096513eb9e7168498fd167dacc2888b338d, because
after commit https://codereview.chromium.org/2106753004, setPositionForTab is no
longer called if there is no change in content offset.

BUG=660935
==========

[Ian Wen, 2016-11-18 01:01:51]

Description was changed from

==========
Revert "[Android] Keep top controls visible until an update from a Tab."

This reverts commit 2e2ed096513eb9e7168498fd167dacc2888b338d, because
after commit https://codereview.chromium.org/2106753004, setPositionForTab is no
longer called if there is no change in content offset.

BUG=660935
==========

to

==========
Revert "[Android] Keep top controls visible until an update from a Tab."

This reverts commit 2e2ed096513eb9e7168498fd167dacc2888b338d, because
after commit https://codereview.chromium.org/2106753004, setPositionForTab 
is no longer called if there is no change in content offset.

BUG=660935
==========

[Ted C, 2016-11-21 20:50:14]

lgtm

[Ian Wen, 2016-11-21 21:09:21]

Description was changed from

==========
Revert "[Android] Keep top controls visible until an update from a Tab."

This reverts commit 2e2ed096513eb9e7168498fd167dacc2888b338d, because
after commit https://codereview.chromium.org/2106753004, setPositionForTab 
is no longer called if there is no change in content offset.

BUG=660935
==========

to

==========
Revert "[Android] Keep top controls visible until an update from a Tab."

This reverts commit 2e2ed096513eb9e7168498fd167dacc2888b338d, because
after commit https://codereview.chromium.org/2106753004, setPositionForTab
is no longer called if there is no change in content offset.

BUG=660935
R=tedchoc@chromium.org

Committed:
https://chromium.googlesource.com/chromium/src/+/6eea3cdf56c513aa5cc9d08522d1...
==========

[Ian Wen, 2016-11-21 21:09:24]

Committed patchset #1 (id:1) manually as
6eea3cdf56c513aa5cc9d08522d1954ba634113b (presubmit successful).