Bug 4016329 do full string comparisons

Use full string comparisons instead of partial for
  file extension and MIME type.
Do case-insensitive comparison of MIME type and file extensions.
Fix error in comment for String8::getPathExtension.
Remove dead code -- StringTokenizer is unused.

Change-Id: I322be6235abbdaab5f7eafa48926dbb2cf46dc29
5 files changed
tree: a4ae478674f82a29aec053aec047caccbde2976a
  1. camera/
  2. cmds/
  3. drm/
  4. include/
  5. media/
  6. services/