Make vboot_reference build in MSVC command line environment.

tests/test_common.h

Index: tests/test_common.h
diff --git a/tests/test_common.h b/tests/test_common.h
index d62071f714686c54ecbf78827ef5dc2643f08edd..ed3e6039d985dae23efc945b5d44812376249fd8 100644
--- a/tests/test_common.h
+++ b/tests/test_common.h
@@ -7,8 +7,6 @@
 #ifndef VBOOT_REFERENCE_TEST_COMMON_H_
 #define VBOOT_REFERENCE_TEST_COMMON_H_
 
-#include <stdint.h>
-
 extern int gTestSuccess;
 
 /* Return 1 if result is equal to expected_result, else return 0.
@@ -18,4 +16,12 @@ int TEST_EQ(int result, int expected_result, char* testname);
  * Also update the global gTestSuccess flag if test fails. */
 int TEST_NEQ(int result, int not_expected_result, char* testname);
 
+/* ANSI Color coding sequences.
+ *
+ * Don't use \e as MSC does not recognize it as a valid escape sequence.
+ */
+#define COL_GREEN "\x1b[1;32m"
+#define COL_RED "\x1b[0;31m"
+#define COL_STOP "\x1b[m"
+
 #endif  /* VBOOT_REFERENCE_TEST_COMMON_H_ */