Lint checks to identify setting files world-readable or world-writable

These lint checks identify use of java.io.File.setReadable(true, false)
and java.io.File.setWritable(true, false) to set file permissions to
world-readable or world-writable.

Change-Id: If702456ba550603c1f9caae4d4c151832c08b40f
4 files changed