Add remoting and PPAPI tests to GN build

remoting/codec/BUILD.gn

+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//remoting/remoting_srcs.gni")
+
+source_set("codec") {
+  sources = rebase_path(remoting_srcs_gypi_values.remoting_codec_sources, ".", "//remoting")
+
+  configs += [ "//build/config/compiler:wexit_time_destructors" ]
+
+  deps = [
+    "//base/third_party/dynamic_annotations",
+    "//media",
+    "//media:shared_memory_support",
+    "//remoting/proto",
+    "//remoting/resources",
+    "//third_party/libvpx",
+    "//third_party/libyuv",
+    "//third_party/opus",
+    "//third_party/webrtc/modules/desktop_capture",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+
+  sources = [
+   "audio_encoder_opus_unittest.cc",
+   "codec_test.cc",
+   "codec_test.h",
+   "video_decoder_vpx_unittest.cc",
+   "video_encoder_helper_unittest.cc",
+   "video_encoder_verbatim_unittest.cc",
+   "video_encoder_vpx_unittest.cc",
+  ]
+
+  deps = [
+    ":codec",
+    "//base",
+    "//remoting/proto",
+    "//testing/gtest",
+    "//third_party/webrtc/modules/desktop_capture",
+  ]
+}