Add brotli content-encoding filter.

components/cronet.gypi

 # Copyright 2014 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.
 
 {
+  'defines': [
+    'DISABLE_BROTLI_SUPPORT=1',
+  ],
   'conditions': [
     ['OS=="android"', {
       # TODO(mef): Figure out what needs to be done for gn script.
       'targets': [
         {
           'target_name': 'cronet_jni_headers',
           'type': 'none',
           'sources': [
             'cronet/android/java/src/org/chromium/net/CronetLibraryLoader.java',
             'cronet/android/java/src/org/chromium/net/CronetUploadDataStream.java',
@@ skipping 582 matching lines @@
             },
           ],
         },
       ],
       'variables': {
         'enable_data_reduction_proxy_support%': 0,
       },
     }],  # OS=="android"
   ],
 }