New extension API: "tab.socketAddress"

net/url_request/url_request.h

Index: net/url_request/url_request.h
===================================================================
--- net/url_request/url_request.h	(revision 71766)
+++ net/url_request/url_request.h	(working copy)
@@ -394,6 +394,10 @@
     return response_info_.was_fetched_via_proxy;
   }
 
+  const std::string& socket_address() const {
+    return response_info_.socket_address;
+  }
+
   // Get all response headers, as a HttpResponseHeaders object.  See comments
   // in HttpResponseHeaders class as to the format of the data.
   net::HttpResponseHeaders* response_headers() const;