Roll gtest and gmock DEPS.

base/numerics/safe_numerics_unittest.cc

Index: base/numerics/safe_numerics_unittest.cc
diff --git a/base/numerics/safe_numerics_unittest.cc b/base/numerics/safe_numerics_unittest.cc
index 09ad1305a148f4f0fef21ea3a95b63caa1234b62..23c2c78a7866c4022cae593a5e0dcda0d497698e 100644
--- a/base/numerics/safe_numerics_unittest.cc
+++ b/base/numerics/safe_numerics_unittest.cc
@@ -34,6 +34,13 @@ inline void ResetFloatingPointUnit() {
 #endif
 }
 
+// These tests deliberately cause arithmetic overflows. If the compiler is
+// aggressive enough, it can const fold these overflows. Disable warnings about
+// overflows for const expressions.
+#if defined(OS_WIN)
+#pragma warning(disable:4756)
+#endif
+
 // Helper macros to wrap displaying the conversion types and line numbers.
 #define TEST_EXPECTED_VALIDITY(expected, actual)                           \
   EXPECT_EQ(expected, CheckedNumeric<Dst>(actual).validity())              \