(Not for review) Dummy C++ side Custom Controls implementation

chrome/browser/media/router/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("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 
 static_library("router") {
   deps = [
@@ skipping 12 matching lines @@
     "create_presentation_connection_request.cc",
     "create_presentation_connection_request.h",
     "issue.cc",
     "issue.h",
     "issue_manager.cc",
     "issue_manager.h",
     "issues_observer.cc",
     "issues_observer.h",
     "media_route.cc",
     "media_route.h",
+    "media_route_status_observer.h",
     "media_router.h",
     "media_router_base.cc",
     "media_router_base.h",
     "media_router_dialog_controller.cc",
     "media_router_dialog_controller.h",
     "media_router_factory.cc",
     "media_router_factory.h",
     "media_router_metrics.cc",
     "media_router_metrics.h",
     "media_routes_observer.cc",
     "media_routes_observer.h",
     "media_sink.cc",
     "media_sink.h",
     "media_sink_service.cc",
     "media_sink_service.h",
     "media_sinks_observer.cc",
     "media_sinks_observer.h",
     "media_source.cc",
     "media_source.h",
     "media_source_helper.cc",
     "media_source_helper.h",
+    "media_status.cc",
+    "media_status.h",
     "offscreen_presentation_manager.cc",
     "offscreen_presentation_manager.h",
     "offscreen_presentation_manager_factory.cc",
     "offscreen_presentation_manager_factory.h",
     "presentation_media_sinks_observer.cc",
     "presentation_media_sinks_observer.h",
     "presentation_request.cc",
     "presentation_request.h",
     "presentation_service_delegate_impl.cc",
     "presentation_service_delegate_impl.h",
@@ skipping 16 matching lines @@
       "//extensions/browser",
       "//mojo/public/cpp/bindings",
     ]
     sources += [
       # TODO(crbug.com/646627): Move media_router_ui_service* to
       # chrome/browser/ui/.
       "media_router_ui_service.cc",
       "media_router_ui_service.h",
       "media_router_ui_service_factory.cc",
       "media_router_ui_service_factory.h",
+      "mojo/media_route_controller.cc",
+      "mojo/media_route_controller.h",
       "mojo/media_route_provider_util_win.cc",
       "mojo/media_route_provider_util_win.h",
       "mojo/media_router_mojo_impl.cc",
       "mojo/media_router_mojo_impl.h",
       "mojo/media_router_mojo_metrics.cc",
       "mojo/media_router_mojo_metrics.h",
     ]
   }
 }
 
 mojom("mojo_bindings") {
   sources = [
+    "mojo/media_controller.mojom",
     "mojo/media_router.mojom",
+    "mojo/media_status.mojom",
   ]
 
   public_deps = [
     "//mojo/common:common_custom_types",
     "//url/mojo:url_mojom_origin",
   ]
 }
 
 static_library("test_support") {
   testonly = true
@@ skipping 15 matching lines @@
     deps += [
       ":mojo_bindings",
       "//extensions/common",
     ]
     sources += [
       "mojo/media_router_mojo_test.cc",
       "mojo/media_router_mojo_test.h",
     ]
   }
 }