[Blimp Net] Add EngineAuthHandler.

blimp/common/create_blimp_message.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 BLIMP_COMMON_CREATE_BLIMP_MESSAGE_H_
 #define BLIMP_COMMON_CREATE_BLIMP_MESSAGE_H_
 
+#include <string>
+
 #include "base/memory/scoped_ptr.h"
 #include "blimp/common/blimp_common_export.h"
 
 namespace blimp {
 
 class BlimpMessage;
 class CompositorMessage;
 class InputMessage;
 class RenderWidgetMessage;
+class StartConnectionMessage;
 
 // Suite of helper methods to simplify the repetitive task of creating
 // new BlimpMessages, initializing them, and extracting type-specific
 // inner messages.
 //
 //
 // Every specialization of CreateBlimpMessage returns an initialized
 // BlimpMessage object. In addition, a pointer to the type-specific inner
 // message is returned via the initial double-pointer parameter.
 //
 // Additional initialization arguments may be taken depending on the
 // message type.
 
 BLIMP_COMMON_EXPORT scoped_ptr<BlimpMessage> CreateBlimpMessage(
     CompositorMessage** compositor_message,
     int target_tab_id);
 
 BLIMP_COMMON_EXPORT scoped_ptr<BlimpMessage> CreateBlimpMessage(
     InputMessage** input_message);
 
 BLIMP_COMMON_EXPORT scoped_ptr<BlimpMessage> CreateBlimpMessage(
     RenderWidgetMessage** render_widget_message,
     int target_tab_id);
 
+BLIMP_COMMON_EXPORT scoped_ptr<BlimpMessage> CreateStartConnectionMessage(
+    const std::string& client_token,
+    int protocol_version);
+
 }  // namespace blimp
 
 #endif  // BLIMP_COMMON_CREATE_BLIMP_MESSAGE_H_