Command+F should close the pulldown on the URL bar

[luixxiul]

Describe the issue you encountered: Command+F should close the pulldown on the URL bar (if there it is). For now you cannot see what you are inputting on the find bar while the pulldown which contains multiple items is displayed because it covers the find bar.

Expected behavior: The pulldown on the URL bar should be closed after the find bar is activated.

• Platform (Win7, 8, 10? macOS? Linux distro?): macOS

• Brave Version: master branch

• Steps to reproduce:

  1. Open https://facebook.com, go to some pages and bookmark them to make the pulldown which should be displayed will be large enough
  2. Display the pulldown by hitting f on the URL bar
  3. Command+F
  4. Search some words blindly

• Any related issues: