WebUI: remove iron-icons/ dependency from inline_login.

Bug: 855205
Change-Id: I96f9face7f052db192a8eb22077d5b1dd12da7ab
Reviewed-on: https://chromium-review.googlesource.com/1144413
Commit-Queue: Scott Chen <scottchen@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577041}
7 files changed