image/pjpeg is a non-standard mime type for progressive jpegs
that is sometimes used. Not considering this an alias of normal
jpeg images was causing content type validation failures in
gwtoolset.
Bug: T102136
Change-Id: I505f16c4e8e4ee2e2a4675f4f07c4b8c12f9d187
image/gif [BITMAP]
image/png image/x-png [BITMAP]
image/ief [BITMAP]
-image/jpeg [BITMAP]
+image/jpeg image/pjpeg [BITMAP]
image/jp2 [BITMAP]
image/xbm [BITMAP]
image/tiff [BITMAP]