Use SHA-1 functions from BoringSSL directly.

net/quic/test_tools/quic_test_utils_test.cc

Index: net/quic/test_tools/quic_test_utils_test.cc
diff --git a/net/quic/test_tools/quic_test_utils_test.cc b/net/quic/test_tools/quic_test_utils_test.cc
index 6d4fb2766a6df531c13a152fcce648b7a30eeb5b..d522c8f53e5e76e6505e2de35be0b59351b05c70 100644
--- a/net/quic/test_tools/quic_test_utils_test.cc
+++ b/net/quic/test_tools/quic_test_utils_test.cc
@@ -37,5 +37,13 @@ TEST(QuicTestUtilsTest, QuicBandwidth) {
       "");
 }
 
+// Ensure that SimpleRandom does not change its output for a fixed seed.
+TEST(QuicTestUtilsTest, SimpleRandomStability) {
+  SimpleRandom rng;
+  rng.set_seed(UINT64_C(0x1234567800010001));
+  EXPECT_EQ(UINT64_C(14865409841904857791), rng.RandUint64());
+  EXPECT_EQ(UINT64_C(12139094019410129741), rng.RandUint64());
+}
+
 }  // namespace test
 }  // namespace net