Remove device enumeration, caching and monitoring from MediaStreamManager.

content/browser/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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 
 source_set("browser") {
@@ skipping 1030 matching lines @@
     "renderer_host/media/audio_input_sync_writer.cc",
     "renderer_host/media/audio_input_sync_writer.h",
     "renderer_host/media/audio_output_device_enumerator.cc",
     "renderer_host/media/audio_output_device_enumerator.h",
     "renderer_host/media/audio_renderer_host.cc",
     "renderer_host/media/audio_renderer_host.h",
     "renderer_host/media/audio_sync_reader.cc",
     "renderer_host/media/audio_sync_reader.h",
     "renderer_host/media/media_capture_devices_impl.cc",
     "renderer_host/media/media_capture_devices_impl.h",
+    "renderer_host/media/media_devices_manager.cc",
+    "renderer_host/media/media_devices_manager.h",
     "renderer_host/media/media_stream_dispatcher_host.cc",
     "renderer_host/media/media_stream_dispatcher_host.h",
     "renderer_host/media/media_stream_manager.cc",
     "renderer_host/media/media_stream_manager.h",
     "renderer_host/media/media_stream_provider.h",
     "renderer_host/media/media_stream_requester.h",
     "renderer_host/media/media_stream_track_metrics_host.cc",
     "renderer_host/media/media_stream_track_metrics_host.h",
     "renderer_host/media/media_stream_ui_proxy.cc",
     "renderer_host/media/media_stream_ui_proxy.h",
@@ skipping 882 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }