Set ToolbarPhone button tint when in tab switcher

Update the toolbar button tint based on incognito state when in the tab
switcher. Previously, ToolbarPhone#updateVisualsForLocationBarState
incorrectly didn't update #mUseLightToolbarDrawables when in the tab
switcher so the buttons wouldn't be properly tinted if changing tab
models while in the tab switcher.

BUG=915594

Change-Id: Iecdd02bf361e50a5a424f6177344b34fa74517bd
Reviewed-on: https://chromium-review.googlesource.com/c/1382699
Reviewed-by: Matthew Jones <[email protected]>
Commit-Queue: Theresa <[email protected]>
Cr-Commit-Position: refs/heads/master@{#617577}
1 file changed