Version: 65.0.3325.124 (Official Build) Revision42ae48183937849c27a047d09b789231a25e3fcf-refs/branch-heads/3325_122@{#3}(32/64-bit)
OS: Windows (7,8,8.1,10),Linux (14.04 LTS),Mac OS X(10.12.6,10.13.1,10.13.4)

What steps will reproduce the problem?
1. Freshly launch chrome,navigate to NTP and open devtools
2. Now go to 'Application' section and click on 'Service workers' and observe
 
Actual: Unnecessarily horizontal scroll bar is seen in 'Service workers' window
Expected: Unnecessarily horizontal scroll bar should not be seen in 'Service workers' window

This is regression issue, broken in ‘M 64’ and below is the bisect info :
Good build: 64.0.3279.0  (Revision: 519519).
Bad build: 64.0.3280.0 (Revision: 519958).

You are probably looking for a change made after 519851(known good), but no later than 519852(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/d74979740ffd05847e6dacd59505a2acc4f9a5a0..1f93c87bda3f9006ffc8c58209dfc3dd8507ee05

Suspect : https://chromium.googlesource.com/chromium/src/+/1f93c87bda3f9006ffc8c58209dfc3dd8507ee05

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

@eostroukhov- 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 : The above issue is also seen on Stable build #65.0.3325.146,Dev build #66.0.3355.0 and Canary build #67.0.3364.0


Thanks!
 

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