Fix QuicClock::WallNow to return a correct value.

net/quic/quic_clock_test.cc

Index: net/quic/quic_clock_test.cc
diff --git a/net/quic/quic_clock_test.cc b/net/quic/quic_clock_test.cc
index 7b106c1efdbd1176fc054c4b3758ebb63e9a5d7b..6ee4540889f7a1115f1962f5a216efb19c1d05f4 100644
--- a/net/quic/quic_clock_test.cc
+++ b/net/quic/quic_clock_test.cc
@@ -29,10 +29,8 @@ TEST(QuicClockTest, WallNow) {
 
   // If end > start, then we can check now is between start and end.
   if (end > start) {
-    EXPECT_LE(static_cast<uint64>(start.ToInternalValue() / 1000000),
-              now.ToUNIXSeconds());
-    EXPECT_LE(now.ToUNIXSeconds(),
-              static_cast<uint64>(end.ToInternalValue() / 1000000));
+    EXPECT_LE(static_cast<uint64>(start.ToTimeT()), now.ToUNIXSeconds());
+    EXPECT_LE(now.ToUNIXSeconds(), static_cast<uint64>(end.ToTimeT()));
   }
 }