Fuchsia: Implement passing of vector<handle<X>> in FIDL/JS

Bug: 883496
Change-Id: I2a769b4779ff0f56622ed62099ee0b620aefb16e
Reviewed-on: https://chromium-review.googlesource.com/c/1318745
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606295}
3 files changed