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- // Copyright 2014 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 REMOTING_HOST_HOST_EXTENSION_H_
- #define REMOTING_HOST_HOST_EXTENSION_H_
- #include <memory>
- #include <string>
- namespace remoting {
- class ClientSessionDetails;
- class HostExtensionSession;
- namespace protocol {
- class ClientStub;
- }
- // Extends |ChromotingHost| with new functionality, and can use extension
- // messages to communicate with the client.
- class HostExtension {
- public:
- virtual ~HostExtension() {}
- // Returns the name of the capability for this extension. This is merged into
- // the capabilities the host reports to the client, to determine whether a
- // HostExtensionSession should be created for a particular session.
- // Returning an empty string indicates that the extension is not associated
- // with a capability.
- virtual std::string capability() const = 0;
- // Creates an extension session, which handles extension messages for a
- // client session.
- // |client_session_details| provides session details and control methods.
- // |client_stub| may be used to send messages to the session.
- // Both interfaces are valid for the lifetime of the |HostExtensionSession|.
- virtual std::unique_ptr<HostExtensionSession> CreateExtensionSession(
- ClientSessionDetails* client_session_details,
- protocol::ClientStub* client_stub) = 0;
- };
- } // namespace remoting
- #endif // REMOTING_HOST_HOST_EXTENSION_H_
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