Performance tools native

Native (C++) binaries and dependencies used by preformance tools insfrastructure.

All sections below expect you to start in .../tools/base/profiler/native

To compile all the android and host binaries:

../../../gradlew compileAndroid

To compile only the host binaries:

../../../gradlew compileHost

To run the host unit tests (If testdata/ is not updated, clear gen/):

../../../gradlew checkHost

To compile for a specific ABI (arm64-v8a for example):

../../../gradlew compileAndroidArm64-v8a