[ios] Sets a solid toolbar color when Reduce Transparency is enabled.

We do not add a blur effect when Reduce Transparency is enabled,
which was causing the incognito toolbar to display with a white
background.  Instead, fall back to the pre-refresh incognito
toolbar color.

BUG=862860

Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I55e4305527c19c90faa00672fc2b80321eca7b4c
Reviewed-on: https://chromium-review.googlesource.com/1138344
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Commit-Queue: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575642}
1 file changed