Add VTSupport for dynamically linking VideoToolbox.

content/content_common.gypi

 # 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../components/tracing.gyp:tracing',
     '../gpu/command_buffer/command_buffer.gyp:gles2_utils',
     '../net/net.gyp:net',
@@ skipping 553 matching lines @@
     }],
     ['OS=="mac"', {
       'dependencies': [
         '../webkit/webkit_resources.gyp:webkit_resources',
       ],
       'sources': [
         'common/gpu/client/gpu_memory_buffer_impl_io_surface.cc',
         'common/gpu/client/gpu_memory_buffer_impl_io_surface.h',
         'common/gpu/media/vt_video_decode_accelerator.cc',
         'common/gpu/media/vt_video_decode_accelerator.h',
+        'common/gpu/media/vt_support.cc',
+        'common/gpu/media/vt_support.h',
       ],
       'sources!': [
         'common/plugin_list_posix.cc',
       ],
       'link_settings': {
         'libraries': [
           '$(SDKROOT)/System/Library/Frameworks/IOSurface.framework',
           '$(SDKROOT)/System/Library/Frameworks/QuartzCore.framework',
         ],
       },
@@ skipping 215 matching lines @@
         'common/sandbox_linux/bpf_renderer_policy_linux.cc',
         'common/sandbox_linux/bpf_renderer_policy_linux.h',
         'common/sandbox_linux/sandbox_bpf_base_policy_linux.cc',
         'common/sandbox_linux/sandbox_bpf_base_policy_linux.h',
       ],
     }, {
       'defines': ['USE_SECCOMP_BPF'],
     }],
   ],
 }