Allow widevinecdmadapter to be built in Chromium

media/media_cdm.gypi

 # Copyright 2013 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': {
     'conditions': [
       ['OS == "android"', {
         # Android doesn't use ffmpeg.
         'use_ffmpeg%': 0,
@@ skipping 135 matching lines @@
               # Because clearkeycdm has type 'loadable_module' (see comments),
               # we must explicitly specify this dependency.
               'libraries': [
                '-lrt',
                 # Built by clearkeycdm.
                 '<(PRODUCT_DIR)/libclearkeycdm.so',
               ],
             }],
           ],
         },
+        {
+          # GN version: //media/cdm/ppapi:stubcdm (TODO!!!)
+          'target_name': 'stubcdm',
+          'type': 'none',
+          'conditions': [
+            ['os_posix == 1 and OS != "mac"', {
+              'type': 'loadable_module',
+            }],
+            ['OS == "mac" or OS == "win"', {
+              'type': 'shared_library',
+            }],
+            ['OS == "mac"', {
+              'xcode_settings': {
+                'DYLIB_INSTALL_NAME_BASE': '@loader_path',
+              },
+            }]
+          ],
+          'defines': ['CDM_IMPLEMENTATION'],
+          'dependencies': [
+            '<(DEPTH)/base/base.gyp:base',
+          ],
+          'sources': [
+            'cdm/ppapi/stub/stub_cdm.cc',
+            'cdm/ppapi/stub/stub_cdm.h',
+          ],
+        },
       ],
     }],
   ],
 }