[Presentation API] (alternative) 1-UA: send message between controller and receiver page

third_party/WebKit/public/platform/modules/presentation/WebPresentationController.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 WebPresentationController_h
 #define WebPresentationController_h
 
 #include "public/platform/WebCommon.h"
+#include "public/platform/modules/presentation/WebPresentationClient.h"
 
 namespace blink {
 
-class WebPresentationConnectionClient;
 class WebString;
 enum class WebPresentationConnectionCloseReason;
 enum class WebPresentationConnectionState;
 
 // The delegate Blink provides to WebPresentationClient in order to get updates.
 class BLINK_PLATFORM_EXPORT WebPresentationController {
  public:
   virtual ~WebPresentationController() {}
 
   // Called when the presentation session is started by the embedder using
@@ skipping 15 matching lines @@
 
   // Called when a binary message of a session is received.
   virtual void didReceiveSessionBinaryMessage(WebPresentationConnectionClient*,
                                               const uint8_t* data,
                                               size_t length) = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebPresentationController_h