Include Mac media glue code in iOS builds.

media/media.gyp

 # Copyright (c) 2012 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,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 970 matching lines @@
           'sources': [
             'base/simd/convert_yuv_to_rgb_x86.cc',
           ],
         }],
         ['OS!="linux" and OS!="win"', {
           'sources!': [
             'base/keyboard_event_counter.cc',
             'base/keyboard_event_counter.h',
           ],
         }],
-      ],
+      ],  # conditions
+      'target_conditions': [
+        ['OS == "ios" and _toolset != "host"', {
+          'sources/': [
+            # Pull in specific Mac files for iOS (which have been filtered out
+            # by file name rules).
+            ['include', '^base/mac/avfoundation_glue\\.h$'],
+            ['include', '^base/mac/avfoundation_glue\\.mm$'],
+            ['include', '^base/mac/coremedia_glue\\.h$'],
+            ['include', '^base/mac/coremedia_glue\\.mm$'],
+          ],
+        }],
+      ],  # target_conditions
     },
     {
       # GN version: //media/mojo/interfaces
       'target_name': 'mojo_media_bindings',
       'type': 'static_library',
       'sources': [
         'mojo/interfaces/media_types.mojom',
         'mojo/interfaces/media_renderer.mojom',
       ],
       'includes': [ 
@@ skipping 780 matching lines @@
                   ],
                 }],
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }