Replace use of ASSERT in test code.

webrtc/p2p/base/p2ptransportchannel_unittest.cc

Index: webrtc/p2p/base/p2ptransportchannel_unittest.cc
diff --git a/webrtc/p2p/base/p2ptransportchannel_unittest.cc b/webrtc/p2p/base/p2ptransportchannel_unittest.cc
index 1f262dbcc77ac1d46fbe88d3a06ecc6e7ce54db1..e5fa8a1dde79d7c5d7949fd50c574cd5c792ff83 100644
--- a/webrtc/p2p/base/p2ptransportchannel_unittest.cc
+++ b/webrtc/p2p/base/p2ptransportchannel_unittest.cc
@@ -19,6 +19,7 @@
 #include "webrtc/p2p/base/teststunserver.h"
 #include "webrtc/p2p/base/testturnserver.h"
 #include "webrtc/p2p/client/basicportallocator.h"
+#include "webrtc/base/checks.h"
 #include "webrtc/base/dscp.h"
 #include "webrtc/base/fakeclock.h"
 #include "webrtc/base/fakenetwork.h"
@@ -2056,7 +2057,7 @@ TEST_F(P2PTransportChannelTest, SignalReadyToSendWithPresumedWritable) {
 class P2PTransportChannelSameNatTest : public P2PTransportChannelTestBase {
  protected:
   void ConfigureEndpoints(Config nat_type, Config config1, Config config2) {
-    ASSERT(nat_type >= NAT_FULL_CONE && nat_type <= NAT_SYMMETRIC);
+    RTC_CHECK(nat_type >= NAT_FULL_CONE && nat_type <= NAT_SYMMETRIC);
     rtc::NATSocketServer::Translator* outer_nat =
         nat()->AddTranslator(kPublicAddrs[0], kNatAddrs[0],
             static_cast<rtc::NATType>(nat_type - NAT_FULL_CONE));
@@ -2066,7 +2067,7 @@ class P2PTransportChannelSameNatTest : public P2PTransportChannelTestBase {
   }
   void ConfigureEndpoint(rtc::NATSocketServer::Translator* nat,
                          int endpoint, Config config) {
-    ASSERT(config <= NAT_SYMMETRIC);
+    RTC_CHECK(config <= NAT_SYMMETRIC);
     if (config == OPEN) {
       AddAddress(endpoint, kPrivateAddrs[endpoint]);
       nat->AddClient(kPrivateAddrs[endpoint]);