Assigning to edchin@ since you'll be doing some TabSwitcher work. lpromero@ created a fix for this when opening a Tab from a webview, it should be similar.

Will make sure this is fixed in the new tab grid. 

Pri-0 bugs are critical regressions or serious emergencies, and this bug has not been updated in three days. Could you please provide an update, or adjust the priority to a more appropriate level if applicable?

If a fix is in active development, please set the status to Started.

Thanks for your time! To disable nags, add the Disable-Nags label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

We want this for keyboard users, but P1 is our Must Have bucket.

crrev.com/c/1142540

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0be56f3a61ac5bf2010458b6dd3a0ecce868b737

commit 0be56f3a61ac5bf2010458b6dd3a0ecce868b737
Author: Kurt Horimoto <kkhorimoto@chromium.org>
Date: Tue Jul 24 16:10:09 2018

[iOS] Focus omnibox when keyboard triggers new tab from tab switcher.

Since the OmniboxFocuser dispatcher is owned by the BVC and the tab
switcher coordinator doesn't know about BVC details, this logic needs
to be pushed up to MainController.

Bug:  805106 
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I4c1e78de8eebb104f597651d9e81f79e292eb079
Reviewed-on: https://chromium-review.googlesource.com/1142540
Reviewed-by: Mark Cogan <marq@chromium.org>
Reviewed-by: edchin <edchin@chromium.org>
Commit-Queue: Kurt Horimoto <kkhorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577568}
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/app/main_controller.mm
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/stack_view/stack_view_controller.mm
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/tab_grid/tab_grid_adaptor.mm
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/tab_grid/tab_grid_coordinator.mm
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/tab_grid/tab_grid_coordinator_unittest.mm
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/tab_grid/tab_grid_view_controller.h
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/tab_grid/tab_grid_view_controller.mm
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/tab_switcher/tab_switcher.h
[modify] https://crrev.com/0be56f3a61ac5bf2010458b6dd3a0ecce868b737/ios/chrome/browser/ui/tab_switcher/tab_switcher_controller.mm

Marking next action date for canary verification before requesting merge.

The NextAction date has arrived: 2018-07-25

Checked it out on canary this morning; looks good!  Requesting merge for M69.

Approved!

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71

commit 550aae32a7ceb37eb58067dd2adab4b2a6dc1e71
Author: Kurt Horimoto <kkhorimoto@chromium.org>
Date: Wed Jul 25 21:04:05 2018

[iOS] Focus omnibox when keyboard triggers new tab from tab switcher.

Since the OmniboxFocuser dispatcher is owned by the BVC and the tab
switcher coordinator doesn't know about BVC details, this logic needs
to be pushed up to MainController.

Bug:  805106 
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I4c1e78de8eebb104f597651d9e81f79e292eb079
Reviewed-on: https://chromium-review.googlesource.com/1142540
Reviewed-by: Mark Cogan <marq@chromium.org>
Reviewed-by: edchin <edchin@chromium.org>
Commit-Queue: Kurt Horimoto <kkhorimoto@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#577568}(cherry picked from commit 0be56f3a61ac5bf2010458b6dd3a0ecce868b737)
Reviewed-on: https://chromium-review.googlesource.com/1150253
Reviewed-by: Kurt Horimoto <kkhorimoto@chromium.org>
Cr-Commit-Position: refs/branch-heads/3497@{#88}
Cr-Branched-From: 271eaf50594eb818c9295dc78d364aea18c82ea8-refs/heads/master@{#576753}
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/app/main_controller.mm
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/stack_view/stack_view_controller.mm
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/tab_grid/tab_grid_adaptor.mm
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/tab_grid/tab_grid_coordinator.mm
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/tab_grid/tab_grid_coordinator_unittest.mm
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/tab_grid/tab_grid_view_controller.h
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/tab_grid/tab_grid_view_controller.mm
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/tab_switcher/tab_switcher.h
[modify] https://crrev.com/550aae32a7ceb37eb58067dd2adab4b2a6dc1e71/ios/chrome/browser/ui/tab_switcher/tab_switcher_controller.mm

Verified in iPhone X(iOS 11.4.1), iPad Air Pro(iOS 11.4.1) and iPhone 6 plus(iOS 10.3.3)

cursor is now focused on the omnibox when loading new tab page from tabswitcher

Link to video:
https://drive.google.com/file/d/1PNX7zAniNuUE62kAi4wVuC0ylB50l5RF/view?usp=sharing

Verified in M69.0.3497.22 Beta in iPhoneX(iOS 11.4.1), iPad Air(iOS 11.4.1) and iPhone 6plus(iOS10.3.3)

cursor is now focused on the omnibox when loading new tab page from tabswitcher

Note:Comment #19 is tested in M70.0.3508.0 Canary