IsNativeAppInstalled

third_party/WebKit/public/platform/modules/installedapp/InstalledApp.h

+// Copyright 2015 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 InstalledApp_h
+#define InstalledApp_h
+
+#include "public/platform/WebCallbacks.h"
+#include "public/platform/WebString.h"
+
+namespace blink {
+
+using AppInstalledCallbacks = WebCallbacks<bool, void>;
+
+class InstalledApp {
+public:
+    virtual ~InstalledApp() {}
+
+    // Takes ownership of the AppInstalledCallbacks.
+    // Does not take ownership of the WebServiceWorkerRegistration.
+    virtual void isAppInstalled(const WebString&, const WebString&, AppInstalledCallbacks*) = 0;
+};
+
+} // namespace blink
+
+#endif // InstalledApp_h