CameraBase: Don't return an sp<> by reference am: 4b49489c12 am: 8c32699ceb am: 8806c2a11d am: 99c4dd2fe8 am: dd82ab2377 am: 1dd068cd45 am: edf9d2f4d1 am: 6ddd08e3a9 am: 0dcc9bb368 am: b739918940  -s ours
am: 92d2d4ca3c

Change-Id: I38ca71a6716426a24d468ff5eddf6aeea0ba0931