Adding method IsInBeam to beamformer class.

webrtc/modules/audio_processing/beamformer/nonlinear_beamformer.h

Index: webrtc/modules/audio_processing/beamformer/nonlinear_beamformer.h
diff --git a/webrtc/modules/audio_processing/beamformer/nonlinear_beamformer.h b/webrtc/modules/audio_processing/beamformer/nonlinear_beamformer.h
index 9d26ec23928d3b42b96be102468c56a9b426f6ef..50aafccc6aa24d796ad3677fb93f36845d5fa0af 100644
--- a/webrtc/modules/audio_processing/beamformer/nonlinear_beamformer.h
+++ b/webrtc/modules/audio_processing/beamformer/nonlinear_beamformer.h
@@ -48,6 +48,9 @@ class NonlinearBeamformer
   void ProcessChunk(const ChannelBuffer<float>& input,
                     ChannelBuffer<float>* output) override;
 
+  // Indicates whether a given azimuth is inside the beam.

[Andrew MacDonald, 2015/06/26 02:04:24]

I know we've copied the comments from the base class everywhere else, but I
think that just invites rot. Really they should be removed. Can you remove this
one at least?

[bloch, 2015/06/26 03:37:28]

Done.

+  bool IsInBeam(SphericalPointf spherical_point) override;
+
   // After processing each block |is_target_present_| is set to true if the
   // target signal es present and to false otherwise. This methods can be called
   // to know if the data is target signal or interference and process it