Modify the JetNews workload to use the new jank testing classes. This allows
simplification of the code and also makes it more straightforward to implement
new workloads that also need to gather frame metrics.
This patch adds the JetNews jank-testing workload. This is accomplished
through the uiauto helper library and the jank test classes.
This workload requires a JetNews app APK to be available. We plan to
make it available through the workload-automation-assets repo.
At the end of the run, users should end up with a json file containing all
the frame/jank metrics.
There are 3 parameters for this workload:
- tests: Specifies which of the 3 available tests to run (default is to run
all of them)
- flingspeed: The speed of the fling interactions.
- repeat: How many times each of the selected tests is to be executed in a
single measuring session.
