App Version: 71.0.3578.28 Beta
iOS Version: 12.0.1, 12.1 Beta only
Device: iPhone and iPad                                                                                                                                                                                                                                                                                        

Steps to reproduce:
1.Launch chrome
2.Load any webpage
3.Enter in to tab grid view

Observed results:
Notice that white empty space is displayed above the web page

Expected results:
Empty space shouldn’t be displayed

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 on M70
Bug reproducible on the current beta channel build (App Version, iOS Version): Yes on M71 Beta

Link to Screenshot:

M71 behavior:
https://drive.google.com/file/d/1VPFfxEnIjitHmHJE8qluvK6T0yeChsp4/view?usp=sharing

M70 behavior:
https://drive.google.com/file/d/1ImXAQTysOzJZdRhR-VQEvOMjXSDKpGaH/view?usp=sharing