AGC2 as a new APM sub-module operating with hard-coded gain.

webrtc/modules/audio_processing/BUILD.gn

 # Copyright (c) 2014 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.
 
 import("//build/config/arm.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 218 matching lines @@
   ]
 
   defines = []
   deps = [
     "..:module_api",
     "../..:webrtc_common",
     "../../audio/utility:audio_frame_operations",
     "../../base:gtest_prod",
     "../../base:protobuf_utils",
     "../audio_coding:isac",
+    "agc2",
   ]
   public_deps = [
     ":audio_processing_c",
   ]
 
   if (apm_debug_dump) {
     defines += [ "WEBRTC_APM_DEBUG_DUMP=1" ]
   } else {
     defines += [ "WEBRTC_APM_DEBUG_DUMP=0" ]
   }
@@ skipping 286 matching lines @@
       "..:module_api",
       "../..:webrtc_common",
       "../../base:gtest_prod",
       "../../base:protobuf_utils",
       "../../base:rtc_base",
       "../../base:rtc_base_approved",
       "../../common_audio:common_audio",
       "../../system_wrappers:system_wrappers",
       "../../test:test_support",
       "../audio_coding:neteq_unittest_tools",
+      "agc2:unittests",
       "test/conversational_speech:unittest",
       "//testing/gmock",
       "//testing/gtest",
     ]
 
     defines = []
 
     if (apm_debug_dump) {
       defines += [ "WEBRTC_APM_DEBUG_DUMP=1" ]
     } else {
@@ skipping 286 matching lines @@
 
       deps = [
         ":audioproc_debug_proto",
         "../..:webrtc_common",
         "../../base:protobuf_utils",
         "../../base:rtc_base_approved",
       ]
     }
   }
 }