Use the new API to set the BoringSSL time callback.

webrtc/base/opensslstreamadapter.cc

Index: webrtc/base/opensslstreamadapter.cc
diff --git a/webrtc/base/opensslstreamadapter.cc b/webrtc/base/opensslstreamadapter.cc
index fa558fad3748d538e55445cee24633c66eac80a1..e04eb04d67c8d05eee38938f406484ccbe5d5247 100644
--- a/webrtc/base/opensslstreamadapter.cc
+++ b/webrtc/base/opensslstreamadapter.cc
@@ -1001,8 +1001,7 @@ SSL_CTX* OpenSSLStreamAdapter::SetupSSLContext() {
   // Set a time callback for BoringSSL because:
   // 1. Our time function is more accurate (doesn't just use gettimeofday).
   // 2. This allows us to inject a fake clock for testing.
-  // SSL_CTX_set_current_time_cb(ctx, &TimeCallback);
-  ctx->current_time_cb = &TimeCallback;
+  SSL_CTX_set_current_time_cb(ctx, &TimeCallback);
 #endif
 
   if (identity_ && !identity_->ConfigureIdentity(ctx)) {