[Presentation API] Change ListenForSessionMessages API to client-style.

content/public/browser/presentation_session_message.cc

 // 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.
 
 #include "content/public/browser/presentation_session_message.h"
 
 namespace content {
 
 PresentationSessionMessage::PresentationSessionMessage(
-    const std::string& presentation_url,
-    const std::string& presentation_id,
-    scoped_ptr<std::string> message)
-    : presentation_url(presentation_url),
-      presentation_id(presentation_id),
-      type(PresentationMessageType::TEXT),
-      message(message.Pass()),
-      data(nullptr) {
-}
+    PresentationMessageType type)
+    : type(type) {}
 
-PresentationSessionMessage::PresentationSessionMessage(
-    const std::string& presentation_url,
-    const std::string& presentation_id,
-    PresentationMessageType type,
-    scoped_ptr<std::vector<uint8_t>> data)
-    : presentation_url(presentation_url),
-      presentation_id(presentation_id),
-      type(type),
-      message(nullptr),
-      data(data.Pass()) {
-}
-
-// static
-scoped_ptr<PresentationSessionMessage>
-PresentationSessionMessage::CreateStringMessage(
-    const std::string& presentation_url,
-    const std::string& presentation_id,
-    scoped_ptr<std::string> message) {
-  return scoped_ptr<PresentationSessionMessage>(new PresentationSessionMessage(
-      presentation_url, presentation_id, message.Pass()));
-}
-
-// static
-scoped_ptr<PresentationSessionMessage>
-PresentationSessionMessage::CreateArrayBufferMessage(
-    const std::string& presentation_url,
-    const std::string& presentation_id,
-    scoped_ptr<std::vector<uint8_t>> data) {
-  return scoped_ptr<PresentationSessionMessage>(new PresentationSessionMessage(
-      presentation_url, presentation_id, PresentationMessageType::ARRAY_BUFFER,
-      data.Pass()));
-}
-
-// static
-scoped_ptr<PresentationSessionMessage>
-PresentationSessionMessage::CreateBlobMessage(
-    const std::string& presentation_url,
-    const std::string& presentation_id,
-    scoped_ptr<std::vector<uint8_t>> data) {
-  return scoped_ptr<PresentationSessionMessage>(new PresentationSessionMessage(
-      presentation_url, presentation_id, PresentationMessageType::BLOB,
-      data.Pass()));
-}
+PresentationSessionMessage::~PresentationSessionMessage() {}
 
 bool PresentationSessionMessage::is_binary() const {
   return data != nullptr;
 }
 
-PresentationSessionMessage::~PresentationSessionMessage() {
-}
-
 }  // namespace content