Move blink scheduler implementation into a component

components/scheduler/child/cancelable_closure_holder.cc

Index: components/scheduler/child/cancelable_closure_holder.cc
diff --git a/content/child/scheduler/cancelable_closure_holder.cc b/components/scheduler/child/cancelable_closure_holder.cc
similarity index 85%
rename from content/child/scheduler/cancelable_closure_holder.cc
rename to components/scheduler/child/cancelable_closure_holder.cc
index 09e688d37bccf3155b9f9fdb8f80a87edbe5dd14..0e1660a948115f914377f67ffe830cdb113c19ff 100644
--- a/content/child/scheduler/cancelable_closure_holder.cc
+++ b/components/scheduler/child/cancelable_closure_holder.cc
@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/child/scheduler/cancelable_closure_holder.h"
+#include "components/scheduler/child/cancelable_closure_holder.h"
 
-namespace content {
+namespace scheduler {
 
 CancelableClosureHolder::CancelableClosureHolder() {
 }
@@ -27,4 +27,4 @@ const base::Closure& CancelableClosureHolder::callback() const {
   return cancelable_callback_.callback();
 }
 
-}  // namespace content
+}  // namespace scheduler