Loads CastEglPlatform implementation from shared library.

ui/ozone/platform/cast/cast.gypi

+# 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': {
+    'cast_graphics_gyp%': '../../chromecast/chromecast.gyp',
+    'internal_ozone_platform_deps': [
+      'ozone_platform_cast',
+    ],
+    'internal_ozone_platform_unittest_deps': [ ],
+    'internal_ozone_platforms': [
+      'cast',
+    ],
+  },
+  'targets': [
+    {
+      'target_name': 'ozone_platform_cast',
+      'type': 'static_library',
+      'dependencies': [
+        '<(cast_graphics_gyp):libcast_graphics_1.0',
+        '../events/events.gyp:events',
+        '../gfx/gfx.gyp:gfx',
+        '../gfx/gfx.gyp:gfx_geometry',
+        '../../base/base.gyp:base',
+        '../../chromecast/chromecast.gyp:cast_public_api',
+      ],
+      'defines': [
+        'OZONE_IMPLEMENTATION',
+      ],
+      'sources': [
+        'gpu_platform_support_cast.cc',
+        'gpu_platform_support_cast.h',
+        'ozone_platform_cast.cc',
+        'ozone_platform_cast.h',
+        'platform_window_cast.cc',
+        'platform_window_cast.h',
+        'surface_factory_cast.cc',
+        'surface_factory_cast.h',
+        'surface_ozone_egl_cast.cc',
+        'surface_ozone_egl_cast.h',
+      ],
+    },
+  ],
+}