cc: Implement test task runner for tests.

cc/cc_tests.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,
     'cc_unit_tests_source_files': [
       'animation/animation_host_unittest.cc',
       'animation/animation_player_unittest.cc',
@@ skipping 261 matching lines @@
       'test/proxy_main_for_test.cc',
       'test/proxy_main_for_test.h',
       'test/remote_channel_impl_for_test.cc',
       'test/remote_channel_impl_for_test.h',
       'test/remote_proto_channel_bridge.cc',
       'test/remote_proto_channel_bridge.h',
       'test/render_pass_test_utils.cc',
       'test/render_pass_test_utils.h',
       'test/scheduler_test_common.cc',
       'test/scheduler_test_common.h',
+      'test/simple_task_runner.cc',
+      'test/simple_task_runner.h',
       'test/skia_common.cc',
       'test/skia_common.h',
       'test/solid_color_content_layer_client.cc',
       'test/solid_color_content_layer_client.h',
       'test/surface_aggregator_test_helpers.cc',
       'test/surface_aggregator_test_helpers.h',
       'test/surface_hittest_test_helpers.cc',
       'test/surface_hittest_test_helpers.h',
       'test/task_graph_runner_test_template.cc',
       'test/task_graph_runner_test_template.h',
@@ skipping 214 matching lines @@
                   '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
                 ],
               }
             ],
           ],
         },
       ],
     }],
   ],
 }