Added a bitexactness test for the beamformer in the audio processing module

webrtc/modules/modules.gyp

Index: webrtc/modules/modules.gyp
diff --git a/webrtc/modules/modules.gyp b/webrtc/modules/modules.gyp
index e0d51c178eb30e46b290d1cf28e54afd8cea29e7..7c128d2a7520f744896e3bcf932a9828395fc463 100644
--- a/webrtc/modules/modules.gyp
+++ b/webrtc/modules/modules.gyp
@@ -441,6 +441,7 @@
               'sources': [
                 'audio_processing/audio_processing_impl_locking_unittest.cc',
                 'audio_processing/audio_processing_impl_unittest.cc',
+                'audio_processing/beamformer_unittest.cc',

[aluebs-webrtc, 2016/03/18 22:51:52]

Shouldn't this unittest be under the beamformer/ folder? Also, shouldn't it be
named nonlinear_beamformer_unittest, since it only test the
nonlinear_beamformer? On top of that, shouldn't it then be combined with the
unittest?

[peah-webrtc, 2016/03/21 08:02:09]

Absolutely! That is also what I wrote in the CL review invite. I will make that
change.

                 'audio_processing/echo_cancellation_unittest.cc',
                 'audio_processing/echo_control_mobile_unittest.cc',
                 'audio_processing/gain_control_unittest.cc',