GN: New conventions, default target and refactorings

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 295 matching lines @@
 
     if (apm_debug_dump) {
       defines = [ "WEBRTC_APM_DEBUG_DUMP=1" ]
     } else {
       defines = [ "WEBRTC_APM_DEBUG_DUMP=0" ]
     }
   }
 }
 
 if (rtc_include_tests) {
+  group("audio_processing_tests") {
+    testonly = true
+    public_deps = [
+      ":audioproc_f",
+      ":audioproc_test_utils",
+      ":click_annotate",
+      ":nonlinear_beamformer_test",
+      ":transient_suppression_test",
+      ":unpack_aecdump",
+    ]
+
+    if (rtc_enable_intelligibility_enhancer) {
+      public_deps += [ ":intelligibility_proc" ]
+    }
+
+    if (rtc_enable_protobuf) {
+      public_deps += [ ":audioproc_unittest_proto" ]
+    }
+  }
+
   rtc_executable("unpack_aecdump") {
     testonly = true
     sources = [
       "test/unpack.cc",
     ]
 
     deps = [
       ":audio_processing",
       ":audioproc_debug_proto",
       ":audioproc_protobuf_utils",
@@ skipping 116 matching lines @@
         "test/protobuf_utils.cc",
         "test/protobuf_utils.h",
       ]
 
       deps = [
         ":audioproc_debug_proto",
       ]
     }
   }
 }