Attaching video with current behavior.

When the omnibox is focused from the peeking state, the suggestions content will not be shown. If focused from any other state, the existing content will be shown.

Deleted: recording.mp4 2.8 MB

	recording.mp4 2.8 MB View Download

I think we should return the previous, pre-Chrome Home behavior here. Show the most likely sites text-based UI when the omnibox is initially focused or empty.

(regardless of where the omnibox is focused from)

Interesting - I can see how it addresses the challenge of excessive animation though I am curious to see how it will impact interaction with zero-query overall. I'm good with returning to previous pre-Chrome Home behavior for now though. If you close the keyboard, would it reveal Chrome Home again?

Yes, unfocusing the omnibox / closing the keyboard would show Chrome Home.

The pre-chrome-home behavior isn't exactly the same. There was a bug that caused zero-suggest to appear on the NTP and google results page when they shouldn't have. In these cases should we just show the bottom sheet content?

Sounds reasonable to me. Why don't we show it on Google results pages?

New Mocks courtesy of Chris: https://folio.googleplex.com/bijou-cleer/161018-Flow#%2FOmnibox.png%3Fc=show

Attaching video with just zero-suggest reenabled. Notably, you still see the content flash before the suggestions show up.

Deleted: recording.mp4 4.2 MB

	recording.mp4 4.2 MB View Download

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519

commit b9fc5a9b20adc654cbf6021ba20d6d5931b6f519
Author: mdjones <mdjones@chromium.org>
Date: Fri May 12 18:22:53 2017

[Home] Placeholder sheet content for omnibox focus

When the omnibox is being focused from the sheet's peeking state, the
bottom sheet content will be hidden to avoid excessive visual noise.
When the omnibox loses focus, the content is replaced by the
suggestions content. If the sheet is already expanded when the omnibox
is focused, the content will remain visible.

This change also re-enables zero-suggest for Chrome Home.

BUG= 716224 

Review-Url: https://codereview.chromium.org/2876093002
Cr-Commit-Position: refs/heads/master@{#471372}

[modify] https://crrev.com/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519/chrome/android/java/src/org/chromium/chrome/browser/omnibox/LocationBarLayout.java
[modify] https://crrev.com/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519/chrome/android/java/src/org/chromium/chrome/browser/toolbar/BottomToolbarPhone.java
[modify] https://crrev.com/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519/chrome/android/java/src/org/chromium/chrome/browser/widget/bottomsheet/BottomSheet.java
[modify] https://crrev.com/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519/chrome/android/java/src/org/chromium/chrome/browser/widget/bottomsheet/BottomSheetContentController.java
[modify] https://crrev.com/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519/chrome/android/java/src/org/chromium/chrome/browser/widget/bottomsheet/BottomSheetMetrics.java
[add] https://crrev.com/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519/chrome/android/java/src/org/chromium/chrome/browser/widget/bottomsheet/PlaceholderSheetContent.java
[modify] https://crrev.com/b9fc5a9b20adc654cbf6021ba20d6d5931b6f519/chrome/android/java_sources.gni

Yeah, we'll need to remove that flash. Also, tapping the back button should close the panel immediately and return to the page, not go to the Home screen. The way to get to the Home screen from the omnibox zero query UI should be the bottom nav bar, once issue 706249 is fixed.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e309521b316083148b2b2073fb589a086e010bc7

commit e309521b316083148b2b2073fb589a086e010bc7
Author: mdjones <mdjones@chromium.org>
Date: Fri May 19 16:45:20 2017

[Home] Hide sheet when back pressed

This change allows a single press of the back button to close the
bottom sheet if expanded via omnibox focus. This allows a user to
easily return to the page if they decide against using the omnibox.

The mechanism for detecting this case is simple: if the placeholder
content is showing, defocus and hide everything with one press. The
reason this works is because the placeholder sheet content will only
be showing if the user expanded the sheet from the peeking state by
focusing the omnibox.

BUG= 716224 

Review-Url: https://codereview.chromium.org/2896483003
Cr-Commit-Position: refs/heads/master@{#473212}

[modify] https://crrev.com/e309521b316083148b2b2073fb589a086e010bc7/chrome/android/java/src/org/chromium/chrome/browser/omnibox/LocationBarPhone.java