App Version: 58.0.3029.35 dev
iOS Version: 9.3.5,iOS 10
Device : iPhone,iPad

Precondition :
1- Set the search engine to google

Steps to reproduce:
 1. Launch chrome.
 2. Perform any search (say : Music).
 3. Tap on Images
 4. Tap on any image.
 5. Scroll the page to fullscreen.

Observed results:
Does not go to full screen 
 
Expected results:
Webpage should go to fullscreen for Images 

Working fine in Android.

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: Working fine
Bug reproducible on Dolphin/Safari/Firefox: Safari : Working fine in Safari and firefox
Bug reproducible on current stable build (App Version, iOS Version): Yes in M57
Bug reproducible on the current beta channel build (App Version, iOS Version): Yes in M58

Link to Video :

iOS :
https://drive.google.com/a/google.com/file/d/0B--UpU2GW2EpQjFoLVR4bHJxdXM/view?usp=sharing

Android:
https://drive.google.com/a/google.com/file/d/0B--UpU2GW2EpZlpEZ3VIUXlnME0/view?usp=sharing