Chrome Version: 70.0.3538.37 (Official Build) Revision 53f287561c37d0074842843cca3b4ac3560a4459-refs/branch-heads/3538@{#693}(32/64-Bit)
OS: Windows(7,8,8.1,10), Mac (10.12.6, 10.13.1, 10.13.6, 10.14) and Linux (14.04 LTS)

Steps to reproduce:
1.Launch chrome and navigate to chrome://restart and relaunch browser.
2.Navigate to NTP and add a shortcut by clicking on 'Add Shortcut' button.
3.Now add another shortcut with the same URL used for the previously added shortcut and observe the confirmation message.

Actual Result  : 'Can't Create shortcut' confirmation message is not displayed.
Expected Result: 'Can't Create shortcut' confirmation message should be displayed on creating a new shortcut using existing URL.

This is a regression issue, broken in 'M-70', and below is the bisect info:
Good Build:70.0.3537.0 (Revision: 587303)
Bad Build :70.0.3538.0 (Revision: 587811)

Change-Log URL: https://chromium.googlesource.com/chromium/src/+log/70.0.3537.0..70.0.3538.0?pretty=fuller&n=10000 

Suspecting:r587313?

@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.

Note:
1. Providing suspect through 'Change-Log' because unable to perform bisect using 'per-revision' and 'chromium bisect' script.
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:[Errno 2] No such file or directory error message
3. Unable to perform 'chromium bisect' script as issue is not reproducible on chromium builds. 

Thank You!
 

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