New extension API: "tab.socketAddress"

net/http/http_stream_parser.cc

Index: net/http/http_stream_parser.cc
===================================================================
--- net/http/http_stream_parser.cc	(revision 71766)
+++ net/http/http_stream_parser.cc	(working copy)
@@ -6,6 +6,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/metrics/histogram.h"
+#include "net/base/address_list.h"
 #include "net/base/auth.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ssl_cert_request_info.h"
@@ -62,6 +63,13 @@
             request_line, headers)));
   }
   response_ = response;
+
+  // Put the peer's ip:port into the response, for inquisitive users.
+  AddressList address;
+  connection_->socket()->GetPeerAddress(&address);
+  response_->socket_address =
+      address.head() ? NetAddressToStringWithPort(address.head()) : "";
+
   std::string request = request_line + headers.ToString();
   scoped_refptr<StringIOBuffer> headers_io_buf(new StringIOBuffer(request));
   request_headers_ = new DrainableIOBuffer(headers_io_buf,