android: Remove onTesting from BindingManager

It's used to skip recording histogram in unit tests where native library
is not loaded. Instead query Library loader if it is initialized instead
and remove the parameter.

Bug: 953307
Change-Id: I2994551003827111c450f903232ec4c7d221fd3e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1569514
Commit-Queue: Bo <boliu@chromium.org>
Reviewed-by: ssid <ssid@chromium.org>
Cr-Commit-Position: refs/heads/master@{#651458}
3 files changed