Advertise brotli for localhost requests.

net/url_request/url_request_http_job.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/url_request/url_request_http_job.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ skipping 698 matching lines @@
         sdch_test_control_ = true;  // 1% probability.
         dictionaries_advertised_.reset();
         advertise_sdch = false;
       } else {
         sdch_test_activated_ = true;
       }
     }
 
     // Advertise "br" encoding only if transferred data is opaque to proxy.
     bool advertise_brotli = false;
-    if (request()->context()->enable_brotli())
-      advertise_brotli = request()->url().SchemeIsCryptographic();
+    if (request()->context()->enable_brotli()) {
+      if (request()->url().SchemeIsCryptographic() ||
+          IsLocalhost(request()->url().HostNoBrackets())) {
+        advertise_brotli = true;
+      }
+    }
 
     // Supply Accept-Encoding headers first so that it is more likely that they
     // will be in the first transmitted packet. This can sometimes make it
     // easier to filter and analyze the streams to assure that a proxy has not
     // damaged these headers. Some proxies deliberately corrupt Accept-Encoding
     // headers.
     std::string advertised_encodings = "gzip, deflate";
     if (advertise_sdch)
       advertised_encodings += ", sdch";
     if (advertise_brotli)
@@ skipping 947 matching lines @@
   // Notify NetworkQualityEstimator.
   if (request()) {
     NetworkQualityEstimator* network_quality_estimator =
         request()->context()->network_quality_estimator();
     if (network_quality_estimator)
       network_quality_estimator->NotifyURLRequestDestroyed(*request());
   }
 }
 
 }  // namespace net