Version: Chrome Beta 68.0.3440.30 
Device: iPhone C (smaller devices)
iOS: 10.3.3

Precondition:
Navigate to chrome://flags, and enable these flags:
1. enable-autofill-credit-card-upload-update-prompt-explanation
2. enable-autofill-credit-card-upload-google-pay-branding
3. enable-autofill-credit-card-upload

Steps to reproduce:
1. Launch Browser
2. Sign into Chrome
3. Navigate to :https://dump-truck.appspot.com/usecase-address_and_cc_on_same_page/address_and_cc.html 
4. Tap Fill with default values and Submit

Observed Results:
Credit Card info bar covers the whole screen in landscape mode in iPhone C


Expected results:
Credit Card info bar should not cover the whole screen in landscape mode in iPhone C


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 Safari/Firefox: Firefox: NA, Safari: NA
Bug reproducible on current stable build (App Version, iOS Version): No M67 (New feature)
Bug reproducible on the current beta channel build (App Version, iOS Version): Yes M68
Link to video/image:
https://drive.google.com/file/d/1qAmXGaafOeqYOnq2aXx6Rskfx4WlhL1l/view?usp=sharing