Round results of multiplying QuicBandwidth and QuicTime::Delta rather than truncating. No behavior…

net/quic/core/quic_bandwidth_test.cc

Index: net/quic/core/quic_bandwidth_test.cc
diff --git a/net/quic/core/quic_bandwidth_test.cc b/net/quic/core/quic_bandwidth_test.cc
index 78fac500581437024bb449a91e5317f20ea32370..31f755b69c19f8f74d2c5bef8e4c93c4655a8678 100644
--- a/net/quic/core/quic_bandwidth_test.cc
+++ b/net/quic/core/quic_bandwidth_test.cc
@@ -63,6 +63,12 @@ TEST_F(QuicBandwidthTest, Scale) {
             0.75f * QuicBandwidth::FromKBytesPerSecond(1000));
   EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(1250),
             QuicBandwidth::FromKBytesPerSecond(1000) * 1.25f);
+
+  // Ensure we are rounding correctly within a 1bps level of precision.
+  EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(5),
+            QuicBandwidth::FromBitsPerSecond(9) * 0.5);
+  EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(2),
+            QuicBandwidth::FromBitsPerSecond(12) * 0.2);
 }
 
 TEST_F(QuicBandwidthTest, BytesPerPeriod) {