Implement HitTestAggregator

components/viz/service/hit_test/display_hit_test_data_factory_local.h

+// 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 COMPONENTS_VIZ_SERVICE_HIT_TEST_DISPLAY_HIT_TEST_DATA_FACTORY_LOCAL_H_
+#define COMPONENTS_VIZ_SERVICE_HIT_TEST_DISPLAY_HIT_TEST_DATA_FACTORY_LOCAL_H_
+
+#include "components/viz/service/hit_test/display_hit_test_data_factory.h"
+#include "components/viz/service/viz_service_export.h"
+
+namespace viz {
+namespace hit_test {
+
+class VIZ_SERVICE_EXPORT DisplayHitTestDataFactoryLocal
+    : public DisplayHitTestDataFactory {
+ public:
+  DisplayHitTestDataFactoryLocal();
+  ~DisplayHitTestDataFactoryLocal() override;
+
+  DisplayHitTestData* Create(int byte_count) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DisplayHitTestDataFactoryLocal);
+};
+
+}  // namespace hit_test
+}  // namespace viz
+
+#endif  // COMPONENTS_VIZ_SERVICE_HIT_TEST_DISPLAY_HIT_TEST_DATA_FACTORY_LOCAL_H_