Convert the PermissionProvider Mojo interface to plain C++.
This interface allows a separate Mojo service to provide permissions
management for a DeviceManager instance. This will be useful if USB
device handling is ever moved into a separate process but until then it
adds needless complexity to the implementation because access checks are
made asynchronous. Make it a normal C++ interface for now.
BUG=None
Review URL: https://codereview.chromium.org/1742333003
Cr-Commit-Position: refs/heads/master@{#379393}
18 files changed
