Implement HitTestAggregator

components/viz/service/hit_test/display_hit_test_data_factory_local.cc

Index: components/viz/service/hit_test/display_hit_test_data_factory_local.cc
diff --git a/components/viz/service/hit_test/display_hit_test_data_factory_local.cc b/components/viz/service/hit_test/display_hit_test_data_factory_local.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0d1238a605ed7ee6bf5f6a287851043c86da2e52
--- /dev/null
+++ b/components/viz/service/hit_test/display_hit_test_data_factory_local.cc
@@ -0,0 +1,18 @@
+// 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.
+
+#include "display_hit_test_data_factory_local.h"
+
+namespace viz {
+namespace hit_test {
+
+DisplayHitTestDataFactoryLocal::DisplayHitTestDataFactoryLocal() {}
+DisplayHitTestDataFactoryLocal::~DisplayHitTestDataFactoryLocal() {}
+
+DisplayHitTestData* DisplayHitTestDataFactoryLocal::Create(int byte_count) {
+  return (DisplayHitTestData*)operator new(byte_count);
+}
+
+}  // namespace hit_test
+}  // namespace viz