Move blink scheduler implementation into a component

components/scheduler/scheduler.gni

Index: components/scheduler/scheduler.gni
diff --git a/components/scheduler/scheduler.gni b/components/scheduler/scheduler.gni
new file mode 100644
index 0000000000000000000000000000000000000000..4a93aed6919c7c50f2f99809bc6be72f74d0633f
--- /dev/null
+++ b/components/scheduler/scheduler.gni
@@ -0,0 +1,12 @@
+# 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.
+
+# This file defines the scheduler gypi values. This file is read once and
+# cached, which is a performance optimization that allows us to share the
+# results of parsing the .gypi file between the public and private BUILD.gn
+# files. It also saves us from duplicating this exec_script call.
+scheduler_gypi_values = exec_script("//build/gypi_to_gn.py",
+                                    [ rebase_path("scheduler.gypi") ],
+                                    "scope",
+                                    [ "scheduler.gypi" ])