Convert MediaRouter mojom apis to intake url::Origin objects instead of strings

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 79 matching lines @@
   }
 }
 
 mojom("mojo_bindings") {
   sources = [
     "mojo/media_router.mojom",
   ]
 
   public_deps = [
     "//mojo/common:common_custom_types",
+    "//url/mojo:url_mojom_origin",
   ]
 }
 
 static_library("test_support") {
   testonly = true
   deps = [
     ":router",
     "//chrome/test:test_support",
     "//testing/gmock",
   ]
@@ skipping 10 matching lines @@
     deps += [
       ":mojo_bindings",
       "//extensions/common",
     ]
     sources += [
       "mojo/media_router_mojo_test.cc",
       "mojo/media_router_mojo_test.h",
     ]
   }
 }