App Version: 62.0.3166.0 canary
iOS Version: 10.3.2, 11 beta 3
Device: iPhone Only
URL: NTP

Steps to reproduce:
  1.  Launch app.
  2.  Scroll to the Articles for you section

Observed results:
Omnibox is narrower than the width of the device screen

Expected results:
Omnibox should be the same width of the device screen

Number of times you were able to reproduce: 5/5
Bug reproducible after clean install: Yes
Bug reproducible after clearing cache and cookies: Yes
Bug reproducible on Chrome Mobile on Android: Not tested
Bug reproducible on Safari/Firefox: Firefox: NA, Safari: NA
Bug reproducible on current stable build (App Version, iOS Version): No M59 (New feature)
Bug reproducible on the current beta channel build (App Version, iOS Version): No M60, M61 (New feature)

Link to video/image: 
https://drive.google.com/a/google.com/file/d/0B3EcbqLuR5TLdlE3cnpPQmdXanM/view