Fix squareFactors in opengl_test.cc
Fix squareFactors in opengl_test.cc

Summary: Remove the caffe2 namespace {} because all the code inside opengl_test.cc is wrapped inside the caffe2 namespace

Reviewed By: Maratyszcza

Differential Revision: D5829458

fbshipit-source-id: e68dde08a1c3dc4c41260f5f028ca7efe8d34fbd

pietern/caffe2,sf-wind/caffe2,Yangqing/caffe2,Yangqing/caffe2,xzturn/caffe2,davinwang/caffe2,caffe2/caffe2,davinwang/caffe2,xzturn/caffe2,davinwang/caffe2,sf-wind/caffe2,Yangqing/caffe2,sf-wind/caffe2,Yangqing/caffe2,davinwang/caffe2,xzturn/caffe2,Yangqing/caffe2,xzturn/caffe2,sf-wind/caffe2,davinwang/caffe2,pietern/caffe2,pietern/caffe2,pietern/caffe2,sf-wind/caffe2,xzturn/caffe2,pietern/caffe2