Add "Open with <ARC-app-name>" items to the context menu

ash/link_handler_model_factory.h

Index: ash/link_handler_model_factory.h
diff --git a/ash/link_handler_model_factory.h b/ash/link_handler_model_factory.h
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+++ b/ash/link_handler_model_factory.h
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+// 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 ASH_LINK_HANDLER_MODEL_FACTORY_H_
+#define ASH_LINK_HANDLER_MODEL_FACTORY_H_
+
+#include <memory>
+
+#include "ash/ash_export.h"
+#include "base/macros.h"
+
+class GURL;
+
+namespace ash {
+
+class LinkHandlerModel;
+
+// A class for creating a LinkHandlerModel object.
+class ASH_EXPORT LinkHandlerModelFactory {
+ public:
+  LinkHandlerModelFactory();
+  virtual ~LinkHandlerModelFactory();
+
+  // Returns a model for the |url|. When such a model for the |url| cannot be
+  // created, returns nullptr.
+  virtual std::unique_ptr<LinkHandlerModel> CreateModel(const GURL& url);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(LinkHandlerModelFactory);
+};
+
+}  // namespace ash
+
+#endif  // ASH_LINK_HANDLER_MODEL_FACTORY_H_