Patch 1/3 to get WebScheduler via WebThread

content/child/scheduler/base_web_scheduler.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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 CONTENT_RENDERER_SCHEDULER_WEB_SCHEDULER_IMPL_H_
-#define CONTENT_RENDERER_SCHEDULER_WEB_SCHEDULER_IMPL_H_
+#ifndef CONTENT_CHILD_SCHEDULER_BASE_WEB_SCHEDULER_H_
+#define CONTENT_CHILD_SCHEDULER_BASE_WEB_SCHEDULER_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebScheduler.h"
 #include "third_party/WebKit/public/platform/WebThread.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace content {
 
-class RendererScheduler;
+class WorkerScheduler;
 class SingleThreadIdleTaskRunner;
 
-class CONTENT_EXPORT WebSchedulerImpl : public blink::WebScheduler {
+class CONTENT_EXPORT BaseWebScheduler : public blink::WebScheduler {
  public:
-  WebSchedulerImpl(RendererScheduler* renderer_scheduler);
-  ~WebSchedulerImpl() override;
+  BaseWebScheduler(
+      scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner,
+      scoped_refptr<base::SingleThreadTaskRunner> loading_task_runner,
+      scoped_refptr<base::SingleThreadTaskRunner> timer_task_runner);
+  ~BaseWebScheduler() override;
 
-  virtual bool shouldYieldForHighPriorityWork();
-  virtual bool canExceedIdleDeadlineIfRequired();
+  // blink::WebScheduler implementation:
   virtual void postIdleTask(const blink::WebTraceLocation& location,
                             blink::WebThread::IdleTask* task);
   virtual void postNonNestableIdleTask(const blink::WebTraceLocation& location,
                                        blink::WebThread::IdleTask* task);
   virtual void postIdleTaskAfterWakeup(const blink::WebTraceLocation& location,
                                        blink::WebThread::IdleTask* task);
   virtual void postLoadingTask(const blink::WebTraceLocation& location,
                                blink::WebThread::Task* task);
   virtual void postTimerTask(const blink::WebTraceLocation& location,
                              blink::WebThread::Task* task,
                              long long delayMs);
 
  private:
   static void runIdleTask(scoped_ptr<blink::WebThread::IdleTask> task,
                           base::TimeTicks deadline);
   static void runTask(scoped_ptr<blink::WebThread::Task> task);
 
-  RendererScheduler* renderer_scheduler_;
   scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> loading_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> timer_task_runner_;
 };
 
 }  // namespace content
 
-#endif  // CONTENT_RENDERER_SCHEDULER_WEB_SCHEDULER_IMPL_H_
+#endif  // CONTENT_CHILD_SCHEDULER_BASE_WEB_SCHEDULER_IMPL_H_