fuchsia: FIDL JS struct support

Now supporting defining and passing structs from JS -> C++.

Bug: 883496
Change-Id: Ib1baf5d435f9e936393e31871f12e71f6ed79f33
Reviewed-on: https://chromium-review.googlesource.com/c/1244891
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600497}
4 files changed