Move blink scheduler implementation into a component

components/scheduler/BUILD.gn

Index: components/scheduler/BUILD.gn
diff --git a/components/scheduler/BUILD.gn b/components/scheduler/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..c60bbcd9b62b488acff3909ad28d4b645c4809ca
--- /dev/null
+++ b/components/scheduler/BUILD.gn
@@ -0,0 +1,87 @@
+# 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.
+
+# GYP version: components/scheduler.gypi:scheduler
+component("scheduler") {
+  sources = [
+    "child/cancelable_closure_holder.cc",
+    "child/cancelable_closure_holder.h",
+    "child/child_scheduler.h",
+    "child/nestable_single_thread_task_runner.h",
+    "child/null_idle_task_runner.cc",
+    "child/null_idle_task_runner.h",
+    "child/null_worker_scheduler.cc",
+    "child/null_worker_scheduler.h",
+    "child/prioritizing_task_queue_selector.cc",
+    "child/prioritizing_task_queue_selector.h",
+    "child/scheduler_helper.cc",
+    "child/scheduler_helper.h",
+    "child/scheduler_message_loop_delegate.cc",
+    "child/scheduler_message_loop_delegate.h",
+    "child/single_thread_idle_task_runner.cc",
+    "child/single_thread_idle_task_runner.h",
+    "child/task_queue_manager.cc",
+    "child/task_queue_manager.h",
+    "child/task_queue_selector.h",
+    "child/time_source.cc",
+    "child/time_source.h",
+    "child/web_scheduler_impl.cc",
+    "child/web_scheduler_impl.h",
+    "child/worker_scheduler.cc",
+    "child/worker_scheduler.h",
+    "child/worker_scheduler_impl.cc",
+    "child/worker_scheduler_impl.h",
+    "renderer/deadline_task_runner.cc",
+    "renderer/deadline_task_runner.h",
+    "renderer/null_renderer_scheduler.cc",
+    "renderer/null_renderer_scheduler.h",
+    "renderer/renderer_scheduler.cc",
+    "renderer/renderer_scheduler.h",
+    "renderer/renderer_scheduler_impl.cc",
+    "renderer/renderer_scheduler_impl.h",
+    "scheduler_export.h",

[rmcilroy, 2015/04/21 16:21:09]

Can we share the file list between GN and gyp?

+  ]
+
+  defines = [ "SCHEDULER_IMPLEMENTATION" ]
+
+  deps = [
+    ":common",
+    "//base",
+    "//cc:cc",
+    "//third_party/WebKit/public:blink",
+    "//ui/gfx:gfx",
+  ]
+}
+
+# GYP version: components/scheduler.gypi:scheduler_common
+source_set("common") {
+  sources = [
+    "common/scheduler_switches.cc",
+    "common/scheduler_switches.h",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+
+  sources = [
+    "child/nestable_task_runner_for_test.cc",
+    "child/nestable_task_runner_for_test.h",
+    "child/prioritizing_task_queue_selector_unittest.cc",
+    "child/scheduler_helper_unittest.cc",
+    "child/task_queue_manager_unittest.cc",
+    "child/test_time_source.cc",
+    "child/test_time_source.h",
+    "child/worker_scheduler_impl_unittest.cc",
+    "renderer/deadline_task_runner_unittest.cc",
+    "renderer/renderer_scheduler_impl_unittest.cc",

[rmcilroy, 2015/04/21 16:21:09]

ditto?

+  ]
+
+  deps = [
+    ":scheduler",
+    "//cc:test_support",
+    "//testing/gmock",
+    "//testing/gtest",
+  ]
+}