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diff --git a/chromium/third_party/blink/renderer/platform/scheduler/public/post_cancellable_task.h b/chromium/third_party/blink/renderer/platform/scheduler/public/post_cancellable_task.h
new file mode 100644
index 00000000000..585c28f1ab5
--- /dev/null
+++ b/chromium/third_party/blink/renderer/platform/scheduler/public/post_cancellable_task.h
@@ -0,0 +1,75 @@
+// Copyright 2018 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_PUBLIC_POST_CANCELLABLE_TASK_H_
+#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_PUBLIC_POST_CANCELLABLE_TASK_H_
+
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "base/location.h"
+#include "base/memory/scoped_refptr.h"
+#include "base/sequenced_task_runner.h"
+#include "base/time/time.h"
+#include "third_party/blink/renderer/platform/platform_export.h"
+
+namespace blink {
+
+// TaskHandle is associated to a task posted by PostCancellableTask() or
+// PostCancellableDelayedTask() and cancels the associated task on
+// TaskHandle::cancel() call or on TaskHandle destruction.
+class PLATFORM_EXPORT TaskHandle {
+ public:
+  class Runner;
+
+  TaskHandle();
+  ~TaskHandle();
+
+  TaskHandle(TaskHandle&&);
+  TaskHandle& operator=(TaskHandle&&);
+
+  // Returns true if the task will run later. Returns false if the task is
+  // cancelled or the task is run already.
+  // This function is not thread safe. Call this on the thread that has posted
+  // the task.
+  bool IsActive() const;
+
+  // Cancels the task invocation. Do nothing if the task is cancelled or run
+  // already.
+  // This function is not thread safe. Call this on the thread that has posted
+  // the task.
+  void Cancel();
+
+ private:
+  TaskHandle(const TaskHandle&) = delete;
+  TaskHandle& operator=(const TaskHandle&) = delete;
+
+  friend PLATFORM_EXPORT TaskHandle
+  PostCancellableTask(base::SequencedTaskRunner&,
+                      const base::Location&,
+                      base::OnceClosure) WARN_UNUSED_RESULT;
+  friend PLATFORM_EXPORT TaskHandle
+  PostDelayedCancellableTask(base::SequencedTaskRunner&,
+                             const base::Location&,
+                             base::OnceClosure,
+                             base::TimeDelta delay) WARN_UNUSED_RESULT;
+
+  explicit TaskHandle(scoped_refptr<Runner>);
+  scoped_refptr<Runner> runner_;
+};
+
+// For same-thread cancellable task posting. Returns a TaskHandle object for
+// cancellation.
+PLATFORM_EXPORT TaskHandle PostCancellableTask(base::SequencedTaskRunner&,
+                                               const base::Location&,
+                                               base::OnceClosure)
+    WARN_UNUSED_RESULT;
+PLATFORM_EXPORT TaskHandle
+PostDelayedCancellableTask(base::SequencedTaskRunner&,
+                           const base::Location&,
+                           base::OnceClosure,
+                           base::TimeDelta delay) WARN_UNUSED_RESULT;
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_PUBLIC_POST_CANCELLABLE_TASK_H_