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This is requested by our UX Claire. Add first name and last name, and
add one more way to trigger phone number.

Updated the unit test.

Test: tested with Chrome on Linux
Bug: 1042084
Change-Id: Ib9cd1185f8538f2655fc30a2a092de8aa27c4b7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2210083Reviewed-by: Darren Shen <shend@chromium.org>
Commit-Queue: Jing Wang <jiwan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#771458}