bindings: Use base::size() instead of arraysize

This CL replaces arraysize() with base::size() in bindings code.
This CL clears a presubmit warning with run_bindings_test.py.


Bug: 837308
Change-Id: I32b02cc2ddd6b32ccac7c6bbdb37573e467d5d6c
Reviewed-on: https://chromium-review.googlesource.com/1071307
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Hitoshi Yoshida <peria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#562180}
56 files changed