Add MemoryCoordinator

components/memory_coordinator/child/blink_memory_coordinator_client.h

+// Copyright 2016 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_MEMORY_COORDINATOR_CHILD_BLINK_MEMORY_COORDINATOR_CLIENT_H_
+#define COMPONENTS_MEMORY_COORDINATOR_CHILD_BLINK_MEMORY_COORDINATOR_CLIENT_H_
+
+#include "components/memory_coordinator/common/memory_coordinator_client.h"
+
+namespace memory_coordinator {
+
+// A MemoryCoordinatorClient for Blink.
+class BlinkMemoryCoordinatorClient : public MemoryCoordinatorClient {
+ public:
+  BlinkMemoryCoordinatorClient();
+  ~BlinkMemoryCoordinatorClient() override;
+
+  // MemoryCoordinatorClient implementation:
+  void OnMemoryStateChange(mojom::MemoryState state) override;
+};
+
+}  // namespace memory_coordinator
+
+#endif  // COMPONENTS_MEMORY_COORDINATOR_CHILD_BLINK_MEMORY_COORDINATOR_CLIENT_H_