vendor dependencies with dep

vendor/github.com/go-chi/chi/middleware/wrap_writer17.go

@@ -0,0 +1,34 @@
+// +build go1.7,!go1.8
+
+package middleware
+
+import (
+	"io"
+	"net/http"
+)
+
+// NewWrapResponseWriter wraps an http.ResponseWriter, returning a proxy that allows you to
+// hook into various parts of the response process.
+func NewWrapResponseWriter(w http.ResponseWriter, protoMajor int) WrapResponseWriter {
+	_, cn := w.(http.CloseNotifier)
+	_, fl := w.(http.Flusher)
+
+	bw := basicWriter{ResponseWriter: w}
+
+	if protoMajor == 2 {
+		if cn && fl {
+			return &http2FancyWriter{bw}
+		}
+	} else {
+		_, hj := w.(http.Hijacker)
+		_, rf := w.(io.ReaderFrom)
+		if cn && fl && hj && rf {
+			return &httpFancyWriter{bw}
+		}
+	}
+	if fl {
+		return &flushWriter{bw}
+	}
+
+	return &bw
+}