presubmit: Report timing to rdb for individual checks
Rather than using CheckChangeOnCommit() or CheckChangeOnUpload() as the
sole entry points for PRESUBMIT.py files, this cl enables presubmit_support.py
to use any CheckXYZ[OnCommit/Upload] function to serve as an entry point.
This way, we can perform timing and RDB reporting for each of the
presubmit check functions and have check-specific data.
Bug: 1106943
Change-Id: Ifdabd68c0904a6d70a828f12de157369c6c1571d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2332321
Commit-Queue: Saagar Sanghavi <saagarsanghavi@google.com>
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@google.com>
