Move blink scheduler implementation into a component

components/scheduler/child/prioritizing_task_queue_selector.h

Index: components/scheduler/child/prioritizing_task_queue_selector.h
diff --git a/content/child/scheduler/prioritizing_task_queue_selector.h b/components/scheduler/child/prioritizing_task_queue_selector.h
similarity index 90%
rename from content/child/scheduler/prioritizing_task_queue_selector.h
rename to components/scheduler/child/prioritizing_task_queue_selector.h
index 936f2ae87f5b4af61025285dafc82f5e65cc6288..a9a63eb12bde3fc5f0b6976ecce44f7db93509ac 100644
--- a/content/child/scheduler/prioritizing_task_queue_selector.h
+++ b/components/scheduler/child/prioritizing_task_queue_selector.h
@@ -2,21 +2,21 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CONTENT_CHILD_SCHEDULER_PRIORITIZING_TASK_QUEUE_SELECTOR_H_
-#define CONTENT_CHILD_SCHEDULER_PRIORITIZING_TASK_QUEUE_SELECTOR_H_
+#ifndef COMPONENTS_SCHEDULER_CHILD_PRIORITIZING_TASK_QUEUE_SELECTOR_H_
+#define COMPONENTS_SCHEDULER_CHILD_PRIORITIZING_TASK_QUEUE_SELECTOR_H_
 
 #include <set>
 
 #include "base/compiler_specific.h"
 #include "base/threading/thread_checker.h"
-#include "content/child/scheduler/task_queue_selector.h"
-#include "content/common/content_export.h"
+#include "components/scheduler/child/task_queue_selector.h"
+#include "components/scheduler/scheduler_export.h"
 
-namespace content {
+namespace scheduler {
 
 // A PrioritizingTaskQueueSelector is a TaskQueueSelector which is used by the
 // SchedulerHelper to enable prioritization of particular task queues.
-class CONTENT_EXPORT PrioritizingTaskQueueSelector
+class SCHEDULER_EXPORT PrioritizingTaskQueueSelector
     : NON_EXPORTED_BASE(public TaskQueueSelector) {
  public:
   enum QueuePriority {
@@ -103,6 +103,6 @@ class CONTENT_EXPORT PrioritizingTaskQueueSelector
   DISALLOW_COPY_AND_ASSIGN(PrioritizingTaskQueueSelector);
 };
 
-}  // namespace content
+}  // namespace scheduler
 
-#endif  // CONTENT_CHILD_SCHEDULER_PRIORITIZING_TASK_QUEUE_SELECTOR_H_
+#endif  // COMPONENTS_SCHEDULER_CHILD_PRIORITIZING_TASK_QUEUE_SELECTOR_H_