[Presentation API] Remove references to presentation sessions.

content/public/common/presentation_info.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_COMMON_PRESENTATION_SESSION_H_
-#define CONTENT_PUBLIC_COMMON_PRESENTATION_SESSION_H_
+#ifndef CONTENT_PUBLIC_COMMON_PRESENTATION_INFO_H_
+#define CONTENT_PUBLIC_COMMON_PRESENTATION_INFO_H_
 
 #include <string>
 
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
 namespace content {
 
 enum PresentationConnectionState {
   PRESENTATION_CONNECTION_STATE_CONNECTING,
   PRESENTATION_CONNECTION_STATE_CONNECTED,
   PRESENTATION_CONNECTION_STATE_CLOSED,
   PRESENTATION_CONNECTION_STATE_TERMINATED
 };
 
 // TODO(imcheng): Use WENT_AWAY for 1-UA mode when it is implemented
 // (crbug.com/513859).
 enum PresentationConnectionCloseReason {
   PRESENTATION_CONNECTION_CLOSE_REASON_CONNECTION_ERROR,
   PRESENTATION_CONNECTION_CLOSE_REASON_CLOSED,
   PRESENTATION_CONNECTION_CLOSE_REASON_WENT_AWAY
 };
 
-// TODO(imcheng): Rename to PresentationConnectionInfo.
-// Represents a presentation session that has been established via either
+// Represents a presentation that has been established via either
 // browser actions or Presentation API.
-struct CONTENT_EXPORT PresentationSessionInfo {
-  PresentationSessionInfo() = default;
-  PresentationSessionInfo(const GURL& presentation_url,
-                          const std::string& presentation_id);
-  ~PresentationSessionInfo();
+struct CONTENT_EXPORT PresentationInfo {
+  PresentationInfo() = default;
+  PresentationInfo(const GURL& presentation_url,
+                   const std::string& presentation_id);
+  ~PresentationInfo();
 
   static constexpr size_t kMaxIdLength = 256;
 
   GURL presentation_url;
   std::string presentation_id;
 };
 
-// Possible reasons why an attempt to create a presentation session failed.
+// Possible reasons why an attempt to create a presentation failed.
 enum PresentationErrorType {
   PRESENTATION_ERROR_NO_AVAILABLE_SCREENS,
-  PRESENTATION_ERROR_SESSION_REQUEST_CANCELLED,
+  PRESENTATION_ERROR_PRESENTATION_REQUEST_CANCELLED,
   PRESENTATION_ERROR_NO_PRESENTATION_FOUND,
   PRESENTATION_ERROR_PREVIOUS_START_IN_PROGRESS,
   PRESENTATION_ERROR_UNKNOWN,
 };
 
-// Struct returned when an attempt to create a presentation session failed.
+// Struct returned when an attempt to create a presentation failed.
 struct CONTENT_EXPORT PresentationError {
   PresentationError() = default;
   PresentationError(PresentationErrorType error_type,
                     const std::string& message);
   ~PresentationError();
 
   static constexpr size_t kMaxMessageLength = 256;
 
   PresentationErrorType error_type;
   std::string message;
 };
 
 }  // namespace content
 
-#endif  // CONTENT_PUBLIC_COMMON_PRESENTATION_SESSION_H_
+#endif  // CONTENT_PUBLIC_COMMON_PRESENTATION_INFO_H_