layers: Style fixup, don't use pass-by-reference params
authorTobin Ehlis <tobine@google.com>
Fri, 12 Aug 2016 20:26:31 +0000 (14:26 -0600)
committerTobin Ehlis <tobine@google.com>
Mon, 15 Aug 2016 17:26:36 +0000 (11:26 -0600)
commit3a5465ad69709ccf5ea65e81b74303f6060f3315
tree65c6d3f8139fdee80e868307fb30fa4f41a65409
parentac9a3700e531e65a6b5e5065405a9aa174d05c2d
layers: Style fixup, don't use pass-by-reference params

Change pass-by-reference to a ptr to comply with Google style guide.
This way it's more clear that function is modifying param, especially when calling.
layers/core_validation.cpp