Every IBinder object can accept a new transaction to tell it that
it might want to reload system properties, and in the process
anyone can register a callback to be executed when this happens.
Use this to reload the trace property.
This is very much ONLY for debugging.
Change-Id: I55c67c46f8f3fa9073bef0dfaab4577ed1d47eb4
This is used by the Java trace wrappers to avoid JNI overhead
when trace tags are disabled.
Also added a new tag for the input subsystem and view hierarchy.
Change-Id: Ia04a507e42a37b1d3bbb19859e6c07a92f4fe9aa
