WifiNative: add infrastructure for packet fates

1) Define the Java classes that the C++ code will
   copy packet fate information into.
2) Define the constants that will be used to represent
   fates. (This is needed to write readable tests for
   item 1.)
3) Declare the native methods on the Java side.
   (This is required for registerNatives to continue
   to work, after we add the new methods on the C++
   side.)

BUG=27528124
TEST=unit tests

Change-Id: If0930f645f95e60c8cb471b10fcb740273159e05
3 files changed
tree: d3f21b1e5b7291572c57742f33b4133d37b9b42e
  1. service/
  2. tests/