App Version: 68.0.3417.0 canary
iOS Version: 11.4 beta 2, 10.3.3
Device: iPads, iPhones
URL: Chrome Settings -- History

Precondition:
Enable ui-refresh-phase-1 in chrome://flag

Steps to reproduce:
  1.  Open chrome canary.
  2.  Browse few sites to generate history.
  3.  Go to Menu --> History
  4.  Tap on “Search” type in the history window --> Tap on Search on keyboard.
  5.  Tap on “Clear Browsing data..” on the history window.

Observed results:
Notice that “Clear Browsing Data…” is not functional.

Expected results:
“Clear Browsing Data…” should be functional and the dialog window should 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: NA
Bug reproducible on Safari/Firefox: Firefox: NA, Safari: NA
Bug reproducible on current stable build (App Version, iOS Version): NA on M66
Bug reproducible on the current beta channel build (App Version, iOS Version): NA on M67

Link to video/image: 

iPad - https://drive.google.com/file/d/1w8q5b2ahYdWmqSd7QXFUxZhcV2aKjWxU/view?usp=sharing

iPhone - https://drive.google.com/file/d/1f-bd6geSAc2_XnuugBTWE06jzo5AwVrQ/view?usp=sharing