Add DisplayScheduler for Surfaces

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': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 592 matching lines @@
         '<(DEPTH)/ui/gfx/gfx.gyp:gfx_geometry',
       ],
       'defines': [
         'CC_SURFACES_IMPLEMENTATION=1',
       ],
       'sources': [
         # Note: file list duplicated in GN build.
         'surfaces/display.cc',
         'surfaces/display.h',
         'surfaces/display_client.h',
+        'surfaces/display_scheduler.cc',
+        'surfaces/display_scheduler.h',
         'surfaces/onscreen_display_client.cc',
         'surfaces/onscreen_display_client.h',
         'surfaces/surface.cc',
         'surfaces/surface.h',
         'surfaces/surface_aggregator.cc',
         'surfaces/surface_aggregator.h',
         'surfaces/surface_display_output_surface.cc',
         'surfaces/surface_display_output_surface.h',
         'surfaces/surface_factory.cc',
         'surfaces/surface_factory.h',
@@ skipping 42 matching lines @@
             'raster/texture_compressor_etc1_sse.h',
           ],
           'cflags': [
             '-msse2',
           ],
         }],
       ],
     },    
   ],
 }