[Cast] Consolidate plethora of GYP files into cast.gyp and cast_testing.gypi.

media/cast/transport/utility/utility.gyp

Index: media/cast/transport/utility/utility.gyp
diff --git a/media/cast/transport/utility/utility.gyp b/media/cast/transport/utility/utility.gyp
deleted file mode 100644
index 9be40683aee1ac9c48d206751b5626b4718a81c5..0000000000000000000000000000000000000000
--- a/media/cast/transport/utility/utility.gyp
+++ /dev/null
@@ -1,26 +0,0 @@
-# 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.
-
-{
-  'variables': {
-    'chromium_code': 1,
-  },
-  'targets': [
-    {
-      'target_name': 'transport_utility',
-      'type': 'static_library',
-      'include_dirs': [
-         '<(DEPTH)/',
-      ],
-      'dependencies': [
-        '<(DEPTH)/base/base.gyp:base',
-        '<(DEPTH)/crypto/crypto.gyp:crypto',
-      ],
-      'sources': [
-        'transport_encryption_handler.cc',
-        'transport_encryption_handler.h',
-      ],
-    },
-  ],
-}