Introduce a SchedulerHelper in content/child/scheduler

content/content_tests.gypi

 # Copyright (c) 2013 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': {
     'layouttest_support_content_sources': [
       'public/test/layouttest_support.h',
       'public/test/nested_message_pump_android.cc',
       'public/test/nested_message_pump_android.h',
@@ skipping 562 matching lines @@
       'browser/webui/web_ui_data_source_unittest.cc',
       'browser/webui/web_ui_message_handler_unittest.cc',
       'child/blink_platform_impl_unittest.cc',
       'child/fileapi/webfilewriter_base_unittest.cc',
       'child/indexed_db/indexed_db_dispatcher_unittest.cc',
       'child/indexed_db/webidbcursor_impl_unittest.cc',
       'child/multipart_response_delegate_unittest.cc',
       'child/notifications/notification_data_conversions_unittest.cc',
       'child/power_monitor_broadcast_source_unittest.cc',
       'child/resource_dispatcher_unittest.cc',
+      'child/scheduler/nestable_task_runner_for_test.cc',
+      'child/scheduler/nestable_task_runner_for_test.h',
+      'child/scheduler/prioritizing_task_queue_selector_unittest.cc',
+      'child/scheduler/scheduler_helper_unittest.cc',
+      'child/scheduler/task_queue_manager_unittest.cc',
       'child/service_worker/service_worker_dispatcher_unittest.cc',
       'child/simple_webmimeregistry_impl_unittest.cc',
       'child/site_isolation_policy_unittest.cc',
       'child/v8_value_converter_impl_unittest.cc',
       'child/web_data_consumer_handle_impl_unittest.cc',
       'child/web_gesture_curve_impl_unittest.cc',
       'child/web_url_loader_impl_unittest.cc',
       'child/webcrypto/test/aes_cbc_unittest.cc',
       'child/webcrypto/test/aes_ctr_unittest.cc',
       'child/webcrypto/test/aes_gcm_unittest.cc',
@@ skipping 67 matching lines @@
       'renderer/media/audio_renderer_mixer_manager_unittest.cc',
       'renderer/media/midi_message_filter_unittest.cc',
       'renderer/media/render_media_client_unittest.cc',
       'renderer/media/render_media_log_unittest.cc',
       'renderer/media/video_capture_impl_manager_unittest.cc',
       'renderer/media/video_capture_impl_unittest.cc',
       'renderer/media/video_capture_message_filter_unittest.cc',
       'renderer/render_thread_impl_unittest.cc',
       'renderer/render_widget_unittest.cc',
       'renderer/scheduler/deadline_task_runner_unittest.cc',
-      'renderer/scheduler/nestable_task_runner_for_test.cc',
-      'renderer/scheduler/nestable_task_runner_for_test.h',
       'renderer/scheduler/renderer_scheduler_impl_unittest.cc',
-      'renderer/scheduler/renderer_task_queue_selector_unittest.cc',
       'renderer/scheduler/resource_dispatch_throttler_unittest.cc',
-      'renderer/scheduler/task_queue_manager_unittest.cc',
       'renderer/scheduler/webthread_impl_for_scheduler_unittest.cc',
       'renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc',
       'renderer/skia_benchmarking_extension_unittest.cc',
       'test/fileapi_test_file_set.cc',
       'test/fileapi_test_file_set.h',
       'test/image_decoder_test.cc',
       'test/image_decoder_test.h',
       'test/run_all_unittests.cc',
     ],
     'content_unittests_speech_sources': [
@@ skipping 567 matching lines @@
             '../ui/gfx/gfx.gyp:gfx_geometry',
           ],
           'include_dirs': [
             '..',
           ],
           'sources': [
             'browser/net/sqlite_persistent_cookie_store_perftest.cc',
             'browser/renderer_host/input/input_router_impl_perftest.cc',
             'common/cc_messages_perftest.cc',
             'common/discardable_shared_memory_heap_perftest.cc',
-            'renderer/scheduler/task_queue_manager_perftest.cc',
+            'child/scheduler/task_queue_manager_perftest.cc',
             'test/run_all_perftests.cc',
           ],
           'conditions': [
             ['OS == "android"', {
               'dependencies': [
                 '../testing/android/native_test.gyp:native_test_native_code',
               ],
             }],
             ['OS=="win" and component!="shared_library" and win_use_allocator_shim==1', {
               'dependencies': [
@@ skipping 914 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }