Add utility function to convert C++ SuggestionAnswer to java.

This removes the duplicate parsing logic in Java.

BUG=

Change-Id: If43303f6a7bc708186601bdaca0e876c6c3ceee4
Reviewed-on: https://chromium-review.googlesource.com/c/1343080
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#609774}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 99bdc253f0235410a64acef2df2e28f9a1cc7b3e
1 file changed