Implement WebFrameScheduler and WebPageScheduler

components/scheduler/child/task_queue.h

 // 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.
 
 #ifndef COMPONENTS_SCHEDULER_CHILD_TASK_QUEUE_H_
 #define COMPONENTS_SCHEDULER_CHILD_TASK_QUEUE_H_
 
 #include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "components/scheduler/scheduler_export.h"
@@ skipping 131 matching lines @@
   // by.
   virtual bool IsQueueEmpty() const;
 
   // Returns the QueueState. Note that this function involves taking a lock, so
   // calling it has some overhead.
   virtual QueueState GetQueueState() const = 0;
 
   // Can be called on any thread.
   virtual const char* GetName() const = 0;
 
+  // Sets the origin associated with the task queue (if any).
+  // NOTE this must be called on the thread this TaskQueue was created by.
+  virtual void SetOrigin(const std::string& origin) = 0;
+
+  // Gets the origin associated with the task queue (default is "").
+  // NOTE this must be called on the thread this TaskQueue was created by.
+  virtual const std::string& GetOrigin() = 0;
+
   // Set the priority of the queue to |priority|. NOTE this must be called on
   // the thread this TaskQueue was created by.
   virtual void SetQueuePriority(QueuePriority priority) = 0;
 
   // Set the pumping policy of the queue to |pump_policy|. NOTE this must be
   // called on the thread this TaskQueue was created by.
   virtual void SetPumpPolicy(PumpPolicy pump_policy) = 0;
 
   // Reloads new tasks from the incoming queue into the work queue, regardless
   // of whether the work queue is empty or not. After this, the function ensures
@@ skipping 13 matching lines @@
 
  protected:
   ~TaskQueue() override {}
 
   DISALLOW_COPY_AND_ASSIGN(TaskQueue);
 };
 
 }  // namespace scheduler
 
 #endif  // COMPONENTS_SCHEDULER_CHILD_TASK_QUEUE_H_