d11ca4dd2c
The native side of the tracing code latches a copy of the tags from a system property on first use. The Java-side tracing code latches a copy of the native's copy during class init. The tracing code is preloaded by the zygote, which means we get the flags during zygote init and don't update them when we launch a new app. This changes the Java sources to also defer initialization until first use, so that newly-launched apps will use the current value of the system property. Bug 7323431 Change-Id: I7db048ec54345ae9565088a35c2e2b4c82f993fd