Allow MediaSession in iframes to be routed

content/test/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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
@@ skipping 1112 matching lines @@
     "../browser/media/audio_stream_monitor_unittest.cc",
     "../browser/media/capture/audio_mirroring_manager_unittest.cc",
     "../browser/media/capture/cursor_renderer_aura_unittest.cc",
     "../browser/media/capture/web_contents_audio_input_stream_unittest.cc",
     "../browser/media/capture/web_contents_video_capture_device_unittest.cc",
     "../browser/media/cdm_service_impl_unittest.cc",
     "../browser/media/media_internals_unittest.cc",
     "../browser/media/midi_host_unittest.cc",
     "../browser/media/session/audio_focus_manager_unittest.cc",
     "../browser/media/session/media_session_controller_unittest.cc",
+    "../browser/media/session/media_session_impl_service_routing_unittest.cc",
     "../browser/media/session/media_session_uma_helper_unittest.cc",
     "../browser/memory/memory_coordinator_impl_unittest.cc",
     "../browser/memory/memory_coordinator_unittest.cc",
     "../browser/memory/memory_monitor_android_unittest.cc",
     "../browser/memory/memory_monitor_win_unittest.cc",
     "../browser/memory/test_memory_monitor.cc",
     "../browser/memory/test_memory_monitor.h",
     "../browser/net/quota_policy_cookie_store_unittest.cc",
     "../browser/notification_service_impl_unittest.cc",
     "../browser/notifications/notification_database_data_unittest.cc",
@@ skipping 580 matching lines @@
   if (is_android) {
     deps += [ "//testing/android/native_test:native_test_native_code" ]
   }
 }
 
 group("fuzzers") {
   deps = [
     "//content/test/fuzzer",
   ]
 }