[Media Router] Reland of "Media Router GYP/GN cleanup".

chrome/browser/media/router/media_router_tests.gypi

Index: chrome/browser/media/router/media_router_tests.gypi
diff --git a/chrome/browser/media/router/media_router_tests.gypi b/chrome/browser/media/router/media_router_tests.gypi
deleted file mode 100644
index 3ef86c75adcb25bfc5603b79c969d77131027fcc..0000000000000000000000000000000000000000
--- a/chrome/browser/media/router/media_router_tests.gypi
+++ /dev/null
@@ -1,24 +0,0 @@
-# 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.
-
-{
-  'sources': [
-    '../../ui/webui/media_router/media_cast_mode_unittest.cc',
-    '../../ui/webui/media_router/media_router_test.cc',
-    '../../ui/webui/media_router/media_router_test.h',
-    '../../ui/webui/media_router/media_router_dialog_controller_unittest.cc',
-    'issue_manager_unittest.cc',
-    'issue_unittest.cc',
-    'media_route_unittest.cc',
-    'media_router_type_converters_unittest.cc',
-    'media_sink_unittest.cc',
-    'media_source_helper_unittest.cc',
-    'media_source_unittest.cc',
-    "presentation_media_sinks_observer_unittest.cc",
-    'route_id_manager_unittest.cc',
-  ],
-  'dependencies': [
-    'browser/media/router/media_router.gyp:media_router_test_support',
-  ],
-}