On KitKat, vector drawables are not supported in chromium permissions
prompt. This CL fixes this issue by replacing the unique vector drawable
for NFC infobar icon to multiples images.

Bug: 1061916
Change-Id: Id96e7e1b496f2849b7d3bfdbb1e81db78e9c793f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2106164Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: François Beaufort <beaufort.francois@gmail.com>
Cr-Commit-Position: refs/heads/master@{#751355}