Cleans up the usage of testing:: in gtest_unittest.  By Zhanyong Wan.
Cleans up the usage of testing:: in gtest_unittest.  By Zhanyong Wan.


lijun0914/googletest,lijun0914/googletest,haoranzeus/googletest,duythanhphan/googletest,smarr/googletest,duythanhphan/googletest,haoranzeus/googletest,haoranzeus/googletest,smarr/googletest,duythanhphan/googletest,smarr/googletest,lijun0914/googletest,smarr/googletest,duythanhphan/googletest