Pass camera facing info to audio client

media/base/BUILD.gn

 # Copyright 2014 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("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//media/media_options.gni")
@@ skipping 246 matching lines @@
     "video_types.h",
     "video_util.cc",
     "video_util.h",
     "wall_clock_time_source.cc",
     "wall_clock_time_source.h",
   ]
 
   allow_circular_includes_from = []
   defines = []
   public_deps = [
+    "//media/base:video_facing",
     "//ppapi/features",
     "//ui/gfx:color_space",
   ]
   deps = [
     "//base/third_party/dynamic_annotations:dynamic_annotations",
     "//gpu",
     "//media:media_features",
     "//media:shared_memory_support",
     "//ppapi/features",
     "//skia",
@@ skipping 53 matching lines @@
   }
 
   if (is_linux || is_win) {
     sources += [
       "keyboard_event_counter.cc",
       "keyboard_event_counter.h",
     ]
   }
 }
 
+source_set("video_facing") {
+  visibility = [
+    "//chromeos",
+    "//content/browser",
+    "//content/public/common:common_sources",
+    "//media/base",
+    "//media/capture",
+  ]
+  sources = [
+    "video_facing.h",
+  ]
+}
+
 static_library("test_support") {
   testonly = true
   sources = [
     "fake_audio_render_callback.cc",
     "fake_audio_render_callback.h",
     "fake_audio_renderer_sink.cc",
     "fake_audio_renderer_sink.h",
     "fake_demuxer_stream.cc",
     "fake_demuxer_stream.h",
     "fake_localized_strings.cc",
@@ skipping 181 matching lines @@
 
 fuzzer_test("media_container_names_fuzzer") {
   sources = [
     "container_names_fuzzertest.cc",
   ]
   deps = [
     "//base",
     "//media",
   ]
 }