Able to reproduce this issue on Mac OS 10.12 using chrome latest Dev M57-57.0.2987.0

Manual Bisect Info:
===================

Good Build: 57.0.2983.0 dev
Bad Build: 57.0.2984.0 dev

Using the per-revision bisect providing the bisect results,
Good Build: 57.0.2983.0 dev (revision : 443819)
Bad Build: 57.0.2984.0 dev (revision : 443964)

You are probably looking for a change made after 443837 (known good), but no later than 443838 (first known bad).

CHANGELOG URL:

The script might not always return single CL as suspect as some perf builds might get missing due to failure.

 https://chromium.googlesource.com/chromium/src/+log/dc7d397153bcbccbc21e12f2ea3568f594699220..e3df8cd8ac45539711b1f0b6a00420f87d09d279

From the CL above, assigning the issue to the concern owner 

@tibell - Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Review-Url: https://codereview.chromium.org/2086223002

Thanks!

I can reproduce this. It's not just the theme that is missing; the whole NTP is not functional, e.g. the Most Visited tiles are not populated, and the search box doesn't do anything. It looks like none of the "chrome.embeddedSearch.*" APIs are hooked up.
tibell, any idea what might be going wrong?

Not sure what's going on. Most likely due to Mojoification. Will try to see if I can fix it or if we need to roll back the CL.

This was due a bug in how Mojo was set up in RPH. Fix out for review: http://crrev.com/2652573002.

This still reproduces on a current ToT build (r447510).

Curious. I'm on a business trip and will be back in the office on Tuesday next week. Is that enough time to fix this or will we have to roll back and reland for next release?

Well, depends on how long it takes to find and fix the problem ;)

M57 goes to Beta any day now, but we can live with this on Beta for a bit. It goes to Stable on March 14; we should have it fixed *well* before that. I'd say anything within the next week or two will be okay; longer than that and we should probably revert.

I also really hope that this is the last problem with the Mojoification. Test coverage is obviously awful (i.e. non-existent) :(

 Issue 687855  has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3c36d59b4bd011c2bbbf28d59275aa082ede1ff5

commit 3c36d59b4bd011c2bbbf28d59275aa082ede1ff5
Author: tibell <tibell@chromium.org>
Date: Tue Feb 07 02:30:37 2017

SearchIPCRouter: Invalidate cached connection ID on renderer crash

BUG= 683021 

Review-Url: https://codereview.chromium.org/2677013004
Cr-Commit-Position: refs/heads/master@{#448519}

[modify] https://crrev.com/3c36d59b4bd011c2bbbf28d59275aa082ede1ff5/chrome/browser/ui/search/search_ipc_router.cc

Your change meets the bar and is auto-approved for M57. Please go ahead and merge the CL to branch 2987 manually. Please contact milestone owner if you have questions.
Owners: amineer@(clank), cmasso@(bling), ketakid@(cros), govind@(desktop)

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

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a5cc619c21b1c41688f2d475dff336e54d47dc11

commit a5cc619c21b1c41688f2d475dff336e54d47dc11
Author: Sam McNally <sammc@chromium.org>
Date: Wed Feb 08 02:37:01 2017

SearchIPCRouter: Invalidate cached connection ID on renderer crash

BUG= 683021 

Review-Url: https://codereview.chromium.org/2677013004
Cr-Commit-Position: refs/heads/master@{#448519}
(cherry picked from commit 3c36d59b4bd011c2bbbf28d59275aa082ede1ff5)

Review-Url: https://codereview.chromium.org/2683943002 .
Cr-Commit-Position: refs/branch-heads/2987@{#378}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}

[modify] https://crrev.com/a5cc619c21b1c41688f2d475dff336e54d47dc11/chrome/browser/ui/search/search_ipc_router.cc

Rechecked this issue on chrome version 57.0.2987.54 on Windows 10, MAC 10.12.2, Ubuntu 14.04. Fix is working as intended. Theme is retained on reloading after killed a new tab page.

Adding TE-Verified labels.