Make WebURLLoader capable of retaining received buffers.

content/content_child.gypi

 # Copyright 2013 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../components/tracing.gyp:tracing',
     '../components/webcrypto/webcrypto.gyp:webcrypto',
     '../mojo/mojo_base.gyp:mojo_environment_chromium',
@@ skipping 172 matching lines @@
       'child/push_messaging/push_provider.cc',
       'child/push_messaging/push_provider.h',
       'child/quota_dispatcher.cc',
       'child/quota_dispatcher.h',
       'child/quota_message_filter.cc',
       'child/quota_message_filter.h',
       'child/request_extra_data.cc',
       'child/request_extra_data.h',
       'child/request_info.cc',
       'child/request_info.h',
+      'child/ref_counted_shared_memory.cc',
+      'child/ref_counted_shared_memory.h',
       'child/resource_dispatcher.cc',
       'child/resource_dispatcher.h',
       'child/resource_scheduling_filter.cc',
       'child/resource_scheduling_filter.h',
       'child/runtime_features.cc',
       'child/runtime_features.h',
       'child/scoped_child_process_reference.cc',
       'child/scoped_child_process_reference.h',
       'child/service_worker/service_worker_dispatcher.cc',
       'child/service_worker/service_worker_dispatcher.h',
@@ skipping 112 matching lines @@
         'child/npapi/webplugin_delegate_impl_mac.mm',
       ],
     }],
     ['OS=="win"', {
       'sources!': [
         'child/npapi/webplugin_delegate_impl_aura.cc',
       ],
     }],
   ],
 }