QUIC - (no behavior change) s/NULL/nullptr/g in .../quic/...

net/quic/quic_spdy_server_stream.cc

Index: net/quic/quic_spdy_server_stream.cc
diff --git a/net/quic/quic_spdy_server_stream.cc b/net/quic/quic_spdy_server_stream.cc
index 0e4ce00d515b247b8b39175512777af60b426881..b0f8abb2ce939a2760edcf9b8c8cffe27982e514 100644
--- a/net/quic/quic_spdy_server_stream.cc
+++ b/net/quic/quic_spdy_server_stream.cc
@@ -112,7 +112,7 @@ void QuicSpdyServerStream::SendResponse() {
   // Find response in cache. If not found, send error response.
   const QuicInMemoryCache::Response* response =
       QuicInMemoryCache::GetInstance()->GetResponse(request_url_);
-  if (response == NULL) {
+  if (response == nullptr) {
     SendErrorResponse();
     return;
   }
@@ -153,10 +153,10 @@ void QuicSpdyServerStream::SendHeadersAndBody(
                                     kDefaultSpdyMajorVersion,
                                     &header_block);
 
-  WriteHeaders(header_block, body.empty(), NULL);
+  WriteHeaders(header_block, body.empty(), nullptr);
 
   if (!body.empty()) {
-    WriteOrBufferData(body, true, NULL);
+    WriteOrBufferData(body, true, nullptr);
   }
 }