Deactivated the intelligibility enhancement functionality by default

webrtc/modules/modules.gyp

 # Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'includes': [
@@ skipping 231 matching lines @@
             'audio_processing/agc/loudness_histogram_unittest.cc',
             'audio_processing/agc/mock_agc.h',
             'audio_processing/audio_buffer_unittest.cc',
             'audio_processing/beamformer/array_util_unittest.cc',
             'audio_processing/beamformer/complex_matrix_unittest.cc',
             'audio_processing/beamformer/covariance_matrix_generator_unittest.cc',
             'audio_processing/beamformer/matrix_unittest.cc',
             'audio_processing/beamformer/mock_nonlinear_beamformer.h',
             'audio_processing/beamformer/nonlinear_beamformer_unittest.cc',
             'audio_processing/echo_cancellation_impl_unittest.cc',
-            'audio_processing/intelligibility/intelligibility_enhancer_unittest.cc',
-            'audio_processing/intelligibility/intelligibility_utils_unittest.cc',
             'audio_processing/splitting_filter_unittest.cc',
             'audio_processing/transient/dyadic_decimator_unittest.cc',
             'audio_processing/transient/file_utils.cc',
             'audio_processing/transient/file_utils.h',
             'audio_processing/transient/file_utils_unittest.cc',
             'audio_processing/transient/moving_moments_unittest.cc',
             'audio_processing/transient/transient_detector_unittest.cc',
             'audio_processing/transient/transient_suppressor_unittest.cc',
             'audio_processing/transient/wpd_node_unittest.cc',
             'audio_processing/transient/wpd_tree_unittest.cc',
@@ skipping 127 matching lines @@
             'video_coding/utility/quality_scaler_unittest.cc',
             'video_coding/video_coding_robustness_unittest.cc',
             'video_coding/video_packet_buffer_unittest.cc',
             'video_coding/video_receiver_unittest.cc',
             'video_coding/video_sender_unittest.cc',
             'video_processing/test/denoiser_test.cc',
             'video_processing/test/video_processing_unittest.cc',
             'video_processing/test/video_processing_unittest.h',
           ],
           'conditions': [
+            ['enable_intelligibility_enhancer==1', {
+              'defines': ['WEBRTC_INTELLIGIBILITY_ENHANCER=1',],
+              'sources': [
+                'audio_processing/intelligibility/intelligibility_enhancer_unittest.cc',
+                'audio_processing/intelligibility/intelligibility_utils_unittest.cc',
+              ],
+            }, {
+              'defines': ['WEBRTC_INTELLIGIBILITY_ENHANCER=0',],
+            }],
             ['libvpx_build_vp9==1', {
               'sources': [
                 'video_coding/codecs/vp9/vp9_screenshare_layers_unittest.cc',
               ],
             }],
             ['enable_bwe_test_logging==1', {
               'defines': [ 'BWE_TEST_LOGGING_COMPILE_TIME_ENABLE=1' ],
             }, {
               'defines': [ 'BWE_TEST_LOGGING_COMPILE_TIME_ENABLE=0' ],
             }],
@@ skipping 372 matching lines @@
               'sources': [
                 'modules_unittests.isolate',
               ],
             },
           ],
         }],
       ],
     }], # include_tests
   ], # conditions
 }