Avoid creating MemoryAllocatorDump for individual sockets

net/socket/stream_socket.cc

Index: net/socket/stream_socket.cc
diff --git a/net/socket/stream_socket.cc b/net/socket/stream_socket.cc
index 650f388f6922cb9b35b54233dd9f23707f2f3c2f..d435fc3ae579638ca99727036e5689f5943b933d 100644
--- a/net/socket/stream_socket.cc
+++ b/net/socket/stream_socket.cc
@@ -98,4 +98,9 @@ void StreamSocket::UseHistory::EmitPreconnectionHistograms() const {
   UMA_HISTOGRAM_ENUMERATION("Net.PreconnectUtilization2", result, 9);
 }
 
+StreamSocket::SocketMemoryStats::SocketMemoryStats()
+    : total_size(0), buffer_size(0), cert_count(0), serialized_cert_size(0) {}
+
+StreamSocket::SocketMemoryStats::~SocketMemoryStats() {}
+
 }  // namespace net