Move blink scheduler implementation into a component

components/scheduler/child/DEPS

Index: components/scheduler/child/DEPS
diff --git a/components/scheduler/child/DEPS b/components/scheduler/child/DEPS
new file mode 100644
index 0000000000000000000000000000000000000000..f4ac3608fa24dea6d346f726431f4cb11c6dff00
--- /dev/null
+++ b/components/scheduler/child/DEPS
@@ -0,0 +1,12 @@
+include_rules = [
+  "+components/scheduler/common",
+  "+components/scheduler/scheduler_export.h",
+  "+third_party/WebKit/public/platform",
+]
+
+specific_include_rules = {
+  "(test_time_source|.*test)\.cc": [
+    "+cc/test",
+    "+content/test",
+  ],
+}