IPH - connect data saver previews

components/feature_engagement_tracker/public/event_constants.h

Index: components/feature_engagement_tracker/public/event_constants.h
diff --git a/components/feature_engagement_tracker/public/event_constants.h b/components/feature_engagement_tracker/public/event_constants.h
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+++ b/components/feature_engagement_tracker/public/event_constants.h
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+// 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_FEATURE_ENGAGEMENT_TRACKER_PUBLIC_EVENT_CONSTANTS_H_
+#define COMPONENTS_FEATURE_ENGAGEMENT_TRACKER_PUBLIC_EVENT_CONSTANTS_H_
+
+#include "base/feature_list.h"
+
+namespace feature_engagement_tracker {
+
+// All the events declared below should also be declared in the Java
+// version: org.chromium.components.feature_engagement_tracker.EventConstants.
+
+extern const char kIPHEventDataSaverPreviewOpened[];
+
+}  // namespace feature_engagement_tracker
+
+#endif  // COMPONENTS_FEATURE_ENGAGEMENT_TRACKER_PUBLIC_EVENT_CONSTANTS_H_