[iOS][MF] Adjusts tintAdjustmentMode

This change is made so the buttons keep the color on iPads when the
popovers are presented.

Bug: 845472
Change-Id: I7ce4d410bd66a5aa0dc1c1258914df493d3ac1db
Reviewed-on: https://chromium-review.googlesource.com/c/1352154
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Commit-Queue: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611132}
1 file changed