Add a basic NativeViewportMac for Mojo

mojo/mojo.gyp

 # 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': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 273 matching lines @@
     },
     {
       'target_name': 'native_viewport',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../gpu/gpu.gyp:command_buffer_service',
         '../gpu/gpu.gyp:gles2_implementation',
         '../ui/events/events.gyp:events',
         '../ui/gfx/gfx.gyp:gfx',
+        '../ui/gl/gl.gyp:gl',
       ],
       'sources': [
         'services/native_viewport/android/mojo_viewport.cc',
         'services/native_viewport/android/mojo_viewport.h',
         'services/native_viewport/native_viewport.h',
         'services/native_viewport/native_viewport_android.cc',
         'services/native_viewport/native_viewport_controller.cc',
         'services/native_viewport/native_viewport_controller.h',
+        'services/native_viewport/native_viewport_mac.mm',
         'services/native_viewport/native_viewport_stub.cc',
         'services/native_viewport/native_viewport_win.cc',
         'services/native_viewport/native_viewport_x11.cc',
       ],
       'conditions': [
-        ['OS=="win" or OS=="android" or OS=="linux"', {
+        ['OS=="win" or OS=="android" or OS=="linux" or OS=="mac"', {
           'sources!': [
             'services/native_viewport/native_viewport_stub.cc',
           ],
         }],
         ['OS=="android"', {
           'dependencies': [
             'mojo_jni_headers',
           ],
         }],
       ],
@@ skipping 73 matching lines @@
             'java_in_dir': '<(DEPTH)/mojo/shell/android/apk',
             'resource_dir': '<(DEPTH)/mojo/shell/android/apk/res',
             'native_lib_target': 'libmojo_shell',
           },
           'includes': [ '../build/java_apk.gypi' ],
         }
       ],
     }],
   ],
 }