Upgrade            72 net/websockets/websocket_basic_handshake_stream.h   virtual scoped_ptr<WebSocketStream> Upgrade() OVERRIDE;
Upgrade            67 net/websockets/websocket_handshake_stream_base.h   virtual scoped_ptr<WebSocketStream> Upgrade() = 0;
Upgrade           131 net/websockets/websocket_handshake_stream_create_helper_test.cc     return handshake->Upgrade();
Upgrade            83 net/websockets/websocket_stream.cc     connect_delegate_->OnSuccess(create_helper_->stream()->Upgrade());