Move io_surface_support_mac to ui/gl.

ui/gl/gl.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,
   },
 
   'targets': [
@@ skipping 86 matching lines @@
         'gl_surface_stub.cc',
         'gl_surface_stub.h',
         'gl_surface_win.cc',
         'gl_surface_x11.cc',
         'gl_surface_osmesa.cc',
         'gl_surface_osmesa.h',
         'gl_switches.cc',
         'gl_switches.h',
         'gpu_switching_manager.cc',
         'gpu_switching_manager.h',
+        'io_surface_support_mac.cc',
+        'io_surface_support_mac.h',
         'scoped_binders.cc',
         'scoped_binders.h',
         'scoped_make_current.cc',
         'scoped_make_current.h',
         'vsync_provider.cc',
         'vsync_provider.h',
         '<(gl_binding_output_dir)/gl_bindings_autogen_gl.cc',
         '<(gl_binding_output_dir)/gl_bindings_autogen_gl.h',
         '<(gl_binding_output_dir)/gl_bindings_autogen_mock.cc',
         '<(gl_binding_output_dir)/gl_bindings_autogen_osmesa.cc',
@@ skipping 227 matching lines @@
           ],
           'variables': {
             'jni_gen_package': 'ui/gl',
           },
           'includes': [ '../../build/jni_generator.gypi' ],
         },
       ],
     }],
   ],
 }