Blimp: add support for SSL connections.

blimp/client/app/blimp_client_switches.h

 // 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.
 
 // Defines all the command-line switches used by //blimp.
 
 #ifndef BLIMP_CLIENT_APP_BLIMP_CLIENT_SWITCHES_H_
 #define BLIMP_CLIENT_APP_BLIMP_CLIENT_SWITCHES_H_
 
 namespace blimp {
 namespace switches {
 
-extern const char kBlimpletEndpoint[];
+// The path to the engine's PEM-encoded X509 certificate.
+// If specified, SSL connected Engines must supply this certificate
+// for the connection to be valid.
+// e.g.:
+// --engine-cert-path=/home/blimp/certs/cert.pem
+extern const char kEngineCertPath[];
+
+// Specifies the engine scheme, IP-address and port to connect to, e.g.:
+// --engine-endpoint="tcp://127.0.0.1:25467".  Valid schemes are "ssl",
+// "tcp", and "quic".
+// Specifies the engine's IP address. Must be used in conjunction with
+// --engine-port and --engine-transport.
+extern const char kEngineIP[];
+
+// Specifies the engine's listening port (1-65535).
+// Must be used in conjunction with --engine-ip and --engine-transport.
+extern const char kEnginePort[];
+
+// Specifies the transport used to communicate with the engine.
+// Can be "tcp" or "ssl".
+// Must be used in conjunction with --engine-ip and --engine-port.
+extern const char kEngineTransport[];
 
 }  // namespace switches
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_APP_BLIMP_CLIENT_SWITCHES_H_