[Presentation API] Remove references to presentation sessions.

third_party/WebKit/public/platform/modules/presentation/WebPresentationConnectionCallbacks.h

 // Copyright 2017 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 WebPresentationConnectionCallbacks_h
 #define WebPresentationConnectionCallbacks_h
 
 #include "public/platform/WebCallbacks.h"
 #include "public/platform/WebCommon.h"
 
 namespace blink {
 
 class WebPresentationConnection;
 struct WebPresentationError;
-struct WebPresentationSessionInfo;
+struct WebPresentationInfo;
 
-// If session was created, callback's onSuccess() is invoked with the
-// information about the presentation session created by the embedder.
-// Otherwise, onError() is invoked with the error code and message.
+// If a presentation was created, callback's onSuccess() is invoked with the
+// information about the presentation.  Otherwise, onError() is invoked with the
+// error code and message.
 class WebPresentationConnectionCallbacks
-    : public WebCallbacks<const WebPresentationSessionInfo&,
+    : public WebCallbacks<const WebPresentationInfo&,
                           const WebPresentationError&> {
  public:
   // Returns newly created PresentationConnection object if
   // WebCallbacks::onSuccess() has been called.
   virtual WebPresentationConnection* getConnection() = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebPresentationConnectionCallbacks_h