JNI: Mockable JNI refactor tool

Adds script for refactoring non-static native methods
to static native methods using @JCaller and for refactoring
static native methods that to use mockable natives.

Bug: 898261
Change-Id: I5188a99c55bba028c375a9bf43d029a2c6752b08
Reviewed-on: https://chromium-review.googlesource.com/c/1361782
Commit-Queue: Aiden Benner <abenner@google.com>
Reviewed-by: agrieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615580}
1 file changed