Add a platform implementation of QuicTest and QuicTestWithParam

net/quic/core/quic_sustained_bandwidth_recorder_test.cc

Index: net/quic/core/quic_sustained_bandwidth_recorder_test.cc
diff --git a/net/quic/core/quic_sustained_bandwidth_recorder_test.cc b/net/quic/core/quic_sustained_bandwidth_recorder_test.cc
index a93b9db079b0f6089ee5b60349a3bd4b11ac4eba..3221ec49c39da2207813a207b1aa4c0ec8064507 100644
--- a/net/quic/core/quic_sustained_bandwidth_recorder_test.cc
+++ b/net/quic/core/quic_sustained_bandwidth_recorder_test.cc
@@ -6,13 +6,15 @@
 
 #include "net/quic/core/quic_bandwidth.h"
 #include "net/quic/core/quic_time.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "net/quic/platform/api/quic_test.h"
 
 namespace net {
 namespace test {
 namespace {
 
-TEST(QuicSustainedBandwidthRecorderTest, BandwidthEstimates) {
+class QuicSustainedBandwidthRecorderTest : public QuicTest {};
+
+TEST_F(QuicSustainedBandwidthRecorderTest, BandwidthEstimates) {
   QuicSustainedBandwidthRecorder recorder;
   EXPECT_FALSE(recorder.HasEstimate());
 
@@ -91,7 +93,7 @@ TEST(QuicSustainedBandwidthRecorderTest, BandwidthEstimates) {
   EXPECT_EQ(recorder.MaxBandwidthTimestamp(), kSeconds);
 }
 
-TEST(QuicSustainedBandwidthRecorderTest, SlowStart) {
+TEST_F(QuicSustainedBandwidthRecorderTest, SlowStart) {
   // Verify that slow start status is correctly recorded.
   QuicSustainedBandwidthRecorder recorder;
   EXPECT_FALSE(recorder.HasEstimate());