Revert of Moved ring-buffer related files from common_audio to audio_processing"

webrtc/common_audio/BUILD.gn

Index: webrtc/common_audio/BUILD.gn
diff --git a/webrtc/common_audio/BUILD.gn b/webrtc/common_audio/BUILD.gn
index 0103655ba9a17b8f2f8dd08bdfde2de22852b121..b01b31816bd9b7b060c337d57c91f825205a278c 100644
--- a/webrtc/common_audio/BUILD.gn
+++ b/webrtc/common_audio/BUILD.gn
@@ -21,7 +21,11 @@
   sources = [
     "audio_converter.cc",
     "audio_converter.h",
+    "audio_ring_buffer.cc",
+    "audio_ring_buffer.h",
     "audio_util.cc",
+    "blocker.cc",
+    "blocker.h",
     "channel_buffer.cc",
     "channel_buffer.h",
     "fft4g.c",
@@ -31,6 +35,8 @@
     "fir_filter_neon.h",
     "fir_filter_sse.h",
     "include/audio_util.h",
+    "lapped_transform.cc",
+    "lapped_transform.h",
     "real_fourier.cc",
     "real_fourier.h",
     "real_fourier_ooura.cc",
@@ -43,6 +49,8 @@
     "resampler/resampler.cc",
     "resampler/sinc_resampler.cc",
     "resampler/sinc_resampler.h",
+    "ring_buffer.c",
+    "ring_buffer.h",
     "signal_processing/auto_corr_to_refl_coef.c",
     "signal_processing/auto_correlation.c",
     "signal_processing/complex_fft_tables.h",