Added GN target for webrtc_opus_fec_test.

webrtc/modules/audio_coding/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/webrtc.gni")
 import("audio_coding.gni")
@@ skipping 1581 matching lines @@
     ]
 
     configs += [ "../..:common_config" ]
     public_configs = [ "../..:common_inherited_config" ]
 
     deps = [
       ":g722",
       "../..:webrtc_common",
     ]
   }
+
+  executable("webrtc_opus_fec_test") {
+    testonly = true
+
+    sources = [
+      "codecs/opus/opus_fec_test.cc",
+    ]
+
+    deps = [
+      ":webrtc_opus",
+      "../../base:rtc_base",
+      "../../common_audio",
+      "../../test:test_support",
+      "../../test:test_support_main",
+      "//build/config/sanitizers:deps",
+      "//testing/gtest",
+    ]
+
+    if (is_clang) {
+      # Suppress warnings from Chrome's Clang plugins.
+      # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
+      configs -= [ "//build/config/clang:find_bad_constructs" ]
+    }
+  }
 }