Revert of Replace StreamListenSocket with StreamSocket in HttpServer.

net/server/http_server_response_info.cc

Index: net/server/http_server_response_info.cc
diff --git a/net/server/http_server_response_info.cc b/net/server/http_server_response_info.cc
index 2d0a32e6cce1752ac56e828e7f4d96fc808506f8..e4c6043aa8d627a76aed82eb08b774da55a91412 100644
--- a/net/server/http_server_response_info.cc
+++ b/net/server/http_server_response_info.cc
@@ -41,14 +41,8 @@
                                      const std::string& content_type) {
   DCHECK(body_.empty());
   body_ = body;
-  SetContentHeaders(body.length(), content_type);
-}
-
-void HttpServerResponseInfo::SetContentHeaders(
-    size_t content_length,
-    const std::string& content_type) {
   AddHeader(HttpRequestHeaders::kContentLength,
-            base::StringPrintf("%" PRIuS, content_length));
+            base::StringPrintf("%" PRIuS, body.length()));
   AddHeader(HttpRequestHeaders::kContentType, content_type);
 }