App Version: 68.0.3440.56 beta
iOS Version: 10.3.3,iOS 11.4
Device: iPhone 6,7

Steps to reproduce:
  1.  Launch Chrome in landscape mode.
  2.  Scroll the screen to full screen.
  3.  Tap on GLIF icon and bookmarks icon simultaneously.
  4.  Change the device orientation to portrait mode.

Observed results: 
At Step 3 : Bookmark screen is displayed
At Step 4 : GLIF screen is displayed/

Expected results: 
Multiple actions should not be performed.

Number of times you were able to reproduce: 3/5
Bug reproducible after clean install: Yes
Bug reproducible after clearing cache and cookies: Yes
Bug reproducible on Chrome Mobile on Android: NA    
Bug reproducible on Dolphin/Safari/Firefox: Safari : NA
Bug reproducible on the current beta channel build : Yes in M67
Bug reproducible on the current beta channel build : Yes in M68

Link to video/image:
https://drive.google.com/file/d/1oT6M-bN1OyI48Ys0pQ0Mn3at1w-bQGvX/view?usp=sharing