[Presentation API] Move Presentation API structs to public/common

content/public/common/presentation_connection_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 CONTENT_PUBLIC_BROWSER_PRESENTATION_CONNECTION_MESSAGE_H_
-#define CONTENT_PUBLIC_BROWSER_PRESENTATION_CONNECTION_MESSAGE_H_
+#ifndef CONTENT_PUBLIC_COMMON_PRESENTATION_CONNECTION_MESSAGE_H_
+#define CONTENT_PUBLIC_COMMON_PRESENTATION_CONNECTION_MESSAGE_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "content/common/content_export.h"
 
 namespace content {
 
 enum PresentationMessageType {
   TEXT,
   BINARY,
 };
 
 // Represents a presentation connection message.
 // If this is a text message, |data| is null; otherwise, |message| is null.
 // Empty messages are allowed.
 struct CONTENT_EXPORT PresentationConnectionMessage {

[nasko, 2017/01/09 23:53:01]

Can this really be used both from the browser and the renderer process?

  public:
   explicit PresentationConnectionMessage(PresentationMessageType type);
   ~PresentationConnectionMessage();
 
   bool is_binary() const;
   const PresentationMessageType type;
   std::string message;
   std::unique_ptr<std::vector<uint8_t>> data;
 };
 
 }  // namespace content
 
-#endif  // CONTENT_PUBLIC_BROWSER_PRESENTATION_CONNECTION_MESSAGE_H_
+#endif  // CONTENT_PUBLIC_COMMON_PRESENTATION_CONNECTION_MESSAGE_H_