Google Chrome	64.0.3269.0 (Official Build) canary (64-bit) (cohort: Clang-64)
Windows 10 Enterprise Version 1607 Build 14393.1770

The text in the bottom portion of the Google Smart Lock popover dialog is hard to read because the gray text color is close to the gray background color. 

Steps to repro:

Sign into Chrome with any profile

Go to any website with a password field, I used this site:
https://myaccount.nytimes.com/get-started/auth?OC=20000138860&campaignId=6WFJF#signup

Right click or press the applications button in the password field and select "Generate Password"

Examine the popover dialog, screenshot attached. 

Expected: We recommend a contrast of 4.5:1 at minimum.

Actual: 
Foreground:#757575
Background:#F5F5F5

The contrast ratio is: 4.2:1

I used the Colour Contrast Analyser tool found here: https://developer.paciellogroup.com/resources/contrastanalyser/