Autocomplete list in URL bar on small window

[luixxiul]

Describe the issue you encountered: On a small window there are some issues on the autocomplete list in URL bar

• "Bookmark" label is not displayed in the autocomplete list, circulating the list with up/down keys.
• Mouse pointer is too "responsive" to circulate them with the mouse wheel

Expected behavior:

• Platform (Win7, 8, 10? macOS? Linux distro?): Windows 7 64 bit
• Brave Version: 0.11.2 Beta1
• Steps to reproduce:
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• Screenshot if needed:
  
• Any related issues: Manual tests for Win-x64 0.11.2 Beta1 #2768

[luixxiul]

This still happens and is annoying when selecting an item with a mouse scroll because the pointer is always active and it interferes with items in the pulldown. STR: 1) browse and create bookmarks enough for the scroll bar to show up, 2) make the size of the browser as small as you can, 3) put a word in the URL bar to get the pulldown, 4) scroll with a mouse wheel.

[bsclifton]

Works great on brave-core 😄 (ex: list will go outside the bounds of the window)