Separate TransferableResource into own header

cc/cc.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': {
     'cc_source_files': [
       'active_animation.cc',
       'active_animation.h',
       'animation_curve.cc',
@@ skipping 200 matching lines @@
       'tile_draw_quad.h',
       'tiled_layer.cc',
       'tiled_layer.h',
       'tiled_layer_impl.cc',
       'tiled_layer_impl.h',
       'tiling_data.cc',
       'tiling_data.h',
       'time_source.h',
       'timing_function.cc',
       'timing_function.h',
+      'transferable_resource.cc',
+      'transferable_resource.h',
       'tree_synchronizer.cc',
       'tree_synchronizer.h',
       'video_layer.cc',
       'video_layer.h',
       'video_layer_impl.cc',
       'video_layer_impl.h',
       'yuv_video_draw_quad.cc',
       'yuv_video_draw_quad.h',
     ],
   },
@@ skipping 41 matching lines @@
         'stubs/float_size.h',
         'stubs/int_point.h',
         'stubs/int_rect.h',
         'stubs/int_size.h',
         'stubs/skia_utils.h',
         'stubs/unit_bezier.h',
       ],
     },
   ],
 }