App Version: 66.0. 3359.67 Beta
iOS Version: 11.2.6, 11.3 beta 6
Device: iPhone and iPad

Prerequisite: Connect the device to bluetooth keyboard

Steps to reproduce:
1. Launch chrome
2. Type or press command+shift+dot(.) keys

Observed results:
Voice search doesn’t start

Expected results:
Voice search(GLIF animation) should appear

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): Yes on M65 
Bug reproducible on the current beta channel build (App Version, iOS Version): Yes on M66