bluetooth: Remove Context from Wrappers and use LocationUtils directly

Context is not final so there is no need to create a wrapper for it.
We extend MockContext directly in our fakes.

Adds a new setHasAndroidLocationPermission that sets a new factory
for LocationUtils to return true or false.

Follow up patch of http://crrev.com/2038753004

Review-Url: https://codereview.chromium.org/2100313003
Cr-Commit-Position: refs/heads/master@{#403390}
6 files changed