Version: 63.0.3239.40 (32/64-bit) be8ba5f2f365c05c14573c0089bc463b6bacb78b-refs/branch-heads/3239@{#411}
OS: Windows (7,8,8.1,10),Linux (14.04 LTS),Mac OS X(10.12.6,10.13.2)

What steps will reproduce the problem?
1. Launch chrome, navigate to chrome://settings/ and scroll down the page to 'On startup' section
2. Now click on 'Open the New Tab page' radio button and press 'Tab' key to move focus ahead and then press 'Shift + Tab' to reverse focus.
3. Now click on 'Open specific page or set of pages' radio button,press 'Tab' key to move focus ahead and then press 'Shift + Tab' to reverse focus,observe

Actual: After pressing 'Shift + Tab' to reverse focus travel focus is not seen on active radio button
Expected: After pressing 'Shift + Tab' to reverse focus travel focus should be seen on active radio button

This is regression issue, broken in ‘M 56’ and will below is the bisect info :
Good build: 56.0.2886.0  (Revision: 424100).
Bad build: 56.0.2888.0 (Revision: 424625).

You are probably looking for a change made after 424574 (known good), but no lat
er than 424575 (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/167edbeffb195457a7d9adde632dfe2848c5855d..3dd8aeb0481c8dd9f05e952c75cdb8d3c9a5eb53

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

@hcarmona- 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.

Suspect : https://chromium.googlesource.com/chromium/src/+/3dd8aeb0481c8dd9f05e952c75cdb8d3c9a5eb53

Thanks!
 

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