Revert of Removing #defines previously used for building without BoringSSL/OpenSSL.

webrtc/api/peerconnectioninterface_unittest.cc

Index: webrtc/api/peerconnectioninterface_unittest.cc
diff --git a/webrtc/api/peerconnectioninterface_unittest.cc b/webrtc/api/peerconnectioninterface_unittest.cc
index e70cbb64a1c4677c490d56aa67b705e0dffed1a9..2da3755fcb7eef39f4491f2edfe1fe9790a5bb78 100644
--- a/webrtc/api/peerconnectioninterface_unittest.cc
+++ b/webrtc/api/peerconnectioninterface_unittest.cc
@@ -293,6 +293,12 @@
     "a=ssrc:4 cname:stream1\r\n"
     "a=ssrc:4 msid:stream1 videotrack1\r\n";
 
+#define MAYBE_SKIP_TEST(feature)                    \
+  if (!(feature())) {                               \
+    LOG(LS_INFO) << "Feature disabled... skipping"; \
+    return;                                         \
+  }
+
 using ::testing::Exactly;
 using cricket::StreamParams;
 using webrtc::AudioSourceInterface;
@@ -2036,6 +2042,7 @@
 // FireFox, use it as a remote session description, generate an answer and use
 // the answer as a local description.
 TEST_F(PeerConnectionInterfaceTest, ReceiveFireFoxOffer) {
+  MAYBE_SKIP_TEST(rtc::SSLStreamAdapter::HaveDtlsSrtp);
   FakeConstraints constraints;
   constraints.AddMandatory(webrtc::MediaConstraintsInterface::kEnableDtlsSrtp,
                            true);