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// 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 WebFrameScheduler_h
#define WebFrameScheduler_h
#include "WebCommon.h"
#include <string>
namespace blink {
class WebSecurityOrigin;
class WebTaskRunner;
class BLINK_PLATFORM_EXPORT WebFrameScheduler {
public:
virtual ~WebFrameScheduler() { }
// The scheduler may throttle tasks associated with offscreen frames.
virtual void setFrameVisible(bool) { }
// Tells the scheduler that the page this frame belongs to is not visible.
// The scheduler may throttle tasks associated with pages that are not visible.
virtual void setPageVisible(bool) { }
// Returns the WebTaskRunner for loading tasks.
// WebFrameScheduler owns the returned WebTaskRunner.
virtual WebTaskRunner* loadingTaskRunner() { return nullptr; }
// Returns the WebTaskRunner for timer tasks.
// WebFrameScheduler owns the returned WebTaskRunner.
virtual WebTaskRunner* timerTaskRunner() { return nullptr; }
// Record the current origin. This is for task attribution in tracing.
virtual void setFrameOrigin(const WebSecurityOrigin&) { }
};
} // namespace blink
#endif // WebFrameScheduler_h
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