Add a platform implementation of QuicTest and QuicTestWithParam

net/quic/core/congestion_control/prr_sender_test.cc

Index: net/quic/core/congestion_control/prr_sender_test.cc
diff --git a/net/quic/core/congestion_control/prr_sender_test.cc b/net/quic/core/congestion_control/prr_sender_test.cc
index aa54700add5e45cecd728329e02775d2250680c9..94e78738347013a29bfcc58c82aa0139f70bffb9 100644
--- a/net/quic/core/congestion_control/prr_sender_test.cc
+++ b/net/quic/core/congestion_control/prr_sender_test.cc
@@ -8,7 +8,7 @@
 
 #include "net/quic/core/crypto/crypto_protocol.h"
 #include "net/quic/core/quic_constants.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "net/quic/platform/api/quic_test.h"
 
 namespace net {
 namespace test {
@@ -18,7 +18,7 @@ namespace {
 const QuicByteCount kMaxSegmentSize = kDefaultTCPMSS;
 }  // namespace
 
-class PrrSenderTest : public ::testing::Test {};
+class PrrSenderTest : public QuicTest {};
 
 TEST_F(PrrSenderTest, SingleLossResultsInSendOnEveryOtherAck) {
   PrrSender prr;