audioproc_f with simulated mic analog gain

webrtc/modules/audio_processing/BUILD.gn

Index: webrtc/modules/audio_processing/BUILD.gn
diff --git a/webrtc/modules/audio_processing/BUILD.gn b/webrtc/modules/audio_processing/BUILD.gn
index 5686dc66908dced9a188cb2929b8cf2ee035667d..ea2dac906b9f0556e692247ff71b67c9d9361f3c 100644
--- a/webrtc/modules/audio_processing/BUILD.gn
+++ b/webrtc/modules/audio_processing/BUILD.gn
@@ -500,6 +500,7 @@ if (rtc_include_tests) {
       "config_unittest.cc",
       "echo_cancellation_impl_unittest.cc",
       "splitting_filter_unittest.cc",
+      "test/fake_recording_device_unittest.cc",
       "transient/dyadic_decimator_unittest.cc",
       "transient/file_utils.cc",
       "transient/file_utils.h",
@@ -524,6 +525,7 @@ if (rtc_include_tests) {
     deps = [
       ":audio_processing",
       ":audioproc_test_utils",
+      ":fake_recording_device",
       "../..:webrtc_common",
       "../../base:gtest_prod",
       "../../base:protobuf_utils",
@@ -670,6 +672,20 @@ if (rtc_include_tests) {
     }
   }
 
+  rtc_source_set("fake_recording_device") {
+    sources = [
+      "test/fake_rec_device_identity.cc",
+      "test/fake_rec_device_identity.h",
+      "test/fake_rec_device_linear.cc",
+      "test/fake_rec_device_linear.h",
+      "test/fake_recording_device.cc",
+      "test/fake_recording_device.h",
+    ]
+    deps = [
+      "../../base:rtc_base_approved",
+    ]
+  }
+
   if (rtc_enable_protobuf) {
     rtc_executable("unpack_aecdump") {
       testonly = true
@@ -708,6 +724,7 @@ if (rtc_include_tests) {
         ":audioproc_debug_proto",
         ":audioproc_protobuf_utils",
         ":audioproc_test_utils",
+        ":fake_recording_device",
         "../../base:protobuf_utils",
         "../../base:rtc_base_approved",
         "../../common_audio:common_audio",