Adds a flag to support "Virtual Time" to the blink scheduler

components/scheduler/scheduler.gyp

 # Copyright 2015 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': {
     # This turns on e.g. the filename-based detection of which
     # platforms to include source files on (e.g. files ending in
     # _mac.h or _mac.cc are only compiled on MacOSX).
     'chromium_code': 1,
   },
   'includes': [
     'scheduler.gypi',
   ],
   'targets': [
     {
+      # GN version: //components/scheduler:common
+      'target_name': 'scheduler_common',
+      'type': 'static_library',
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [
+        '<@(scheduler_common_sources)',
+      ],
+    },
+    {
       # GN version: //components/scheduler:scheduler
       'target_name': 'scheduler',
       'type': '<(component)',
       'dependencies': [
+        'scheduler_common',
         '../../base/base.gyp:base',
         '../../cc/cc.gyp:cc',
         '../../third_party/WebKit/public/blink.gyp:blink',
         '../../ui/gfx/gfx.gyp:gfx',
       ],
       'include_dirs': [
         '../..',
       ],
       'defines': [
         'SCHEDULER_IMPLEMENTATION',
@@ skipping 13 matching lines @@
       'type': 'static_library',
       'include_dirs': [
         '../..',
       ],
       'sources': [
         '<@(scheduler_test_support_sources)',
       ],
     },
   ],
 }