Add Finch experiment for selectively bypassing proxies.

content/browser/loader/resource_dispatcher_host_impl.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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 
 #include <algorithm>
 #include <set>
@@ skipping 1969 matching lines @@
   }
 
   // Raw headers are sensitive, as they include Cookie/Set-Cookie, so only
   // allow requesting them if requester has ReadRawCookies permission.
   if ((load_flags & net::LOAD_REPORT_RAW_HEADERS)
       && !policy->CanReadRawCookies(child_id)) {
     VLOG(1) << "Denied unauthorized request for raw headers";
     load_flags &= ~net::LOAD_REPORT_RAW_HEADERS;
   }
 
+  // Add a flag to selectively bypass the data reduction proxy if the resource
+  // type is not an image.
+  if (request_data.resource_type != ResourceType::IMAGE)
+    load_flags |= net::LOAD_BYPASS_DATA_REDUCTION_PROXY;
+
   return load_flags;
 }
 
 }  // namespace content