1 files changed, 38 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/platform/scheduler/common/idle_memory_reclaimer.h b/chromium/third_party/blink/renderer/platform/scheduler/common/idle_memory_reclaimer.h
new file mode 100644
index 00000000000..6ca1db03217
--- /dev/null
+++ b/chromium/third_party/blink/renderer/platform/scheduler/common/idle_memory_reclaimer.h
@@ -0,0 +1,38 @@
+// Copyright 2017 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_COMMON_IDLE_MEMORY_RECLAIMER_H_
+#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_COMMON_IDLE_MEMORY_RECLAIMER_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "third_party/blink/renderer/platform/scheduler/common/scheduler_helper.h"
+#include "third_party/blink/renderer/platform/scheduler/common/single_thread_idle_task_runner.h"
+
+namespace blink {
+namespace scheduler {
+
+// This class periodically sweeps away canceled delayed tasks and considers
+// resizing to fit all internal queues, which helps reduce memory consumption.
+class PLATFORM_EXPORT IdleMemoryReclaimer {
+ public:
+  IdleMemoryReclaimer(
+      SchedulerHelper* scheduler_helper,
+      scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner);
+
+ private:
+  void PostIdleTask();
+  void IdleTask(base::TimeTicks deadline);
+
+  SchedulerHelper* scheduler_helper_;  // NOT OWNED
+  scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
+  base::WeakPtrFactory<IdleMemoryReclaimer> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(IdleMemoryReclaimer);
+};
+
+}  // namespace scheduler
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_COMMON_IDLE_MEMORY_RECLAIMER_H_