Chrome Version: 71.0.3545.0 (Official Build)Revision 38ca181b5b0849226f5f15de263301b40cd36b5d-refs/branch-heads/3545@{#1}(32/64-bit)
OS:  Windows(7,8,8.1,10), Mac(10.12.6 , 10.13.1 , 10.13.6, 10.14), Linux(14.04) OS

Pre-condition: Enable "Enable using the Google local NTP" and  "New Tab Page Custom Links" flags under chrome://flags

Steps to reproduce:
1. Launch Chrome, navigate to NTP and click on 'Add Shortcut' to open the overlay.
2. Bring the mouse pointer to 'Name' text field and observe.

Actual Result  : Tool-tip is not seen for Name text field on Add shortcut overlay.
Expected Result: Tool-tip should be seen for Name text field on Add shortcut overlay.

This is a Regression issue, broken in 'M-70' and below is the bisect info:
Good Build: 70.0.3532.0 (Revision: 585633)
Bad Build : 70.0.3533.0 (Revision: 586155)

You are probably looking for a change made after 586023 (known good), but no later than 586029 (first known bad).

Narrow Bisect info:
https://chromium.googlesource.com/chromium/src/+log/d24b31e29bf10c1490a19429dd5e1dea4cbf5d74..9c6ba22ab239412805bb386f09779c76d918bba3

Suspecting: r586024 ?

@kristipark: 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.

Kindly review the attached screen-cast for reference.

Note:
1.Providing suspect through 'chromium bisect' script because unable to perform bisect using 'per-revision' 
2.Tried performing 'per revision' bisect on multiple Windows, Mac and Linux machines but unable to perform the same since getting following error: 
(a) Error message on Windows and Linux OS : Unable to find locale data files 
(b) Error message on Mac OS:[Err no 2] No such file or directory error message.
3.Issue is also seen on M-70 Dev build # 70.0.3538.9

Thank You..!!
 

Deleted: Actual_Behaviour.mp4 494 KB

	Actual_Behaviour.mp4 494 KB View Download

Deleted: Expected_Behaviour.mp4 445 KB

	Expected_Behaviour.mp4 445 KB View Download