Minimal implementation of Widevine MediaCAS ECMG.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=226515998

testing/gunit.h

@@ -11,9 +11,7 @@
 
 #include <gtest/gtest.h>
 
-#define EXPECT_OK(expression) \
-  EXPECT_EQ(util::error::OK, expression.error_code())
-#define ASSERT_OK(expression) \
-  ASSERT_EQ(util::error::OK, expression.error_code())
+#define EXPECT_OK(expression) EXPECT_EQ(error::OK, expression.error_code())
+#define ASSERT_OK(expression) ASSERT_EQ(error::OK, expression.error_code())
 
 #endif  // TESTING_GUNIT_H_