Updates SessionMessage to ConnectionMessage.

content/public/browser/presentation_session_message.cc

Index: content/public/browser/presentation_session_message.cc
diff --git a/content/public/browser/presentation_session_message.cc b/content/public/browser/presentation_session_message.cc
deleted file mode 100644
index 24c78d7c5b4098f60fe056fb664c5a1923f13b40..0000000000000000000000000000000000000000
--- a/content/public/browser/presentation_session_message.cc
+++ /dev/null
@@ -1,19 +0,0 @@
-// 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(
-    PresentationMessageType type)
-    : type(type) {}
-
-PresentationSessionMessage::~PresentationSessionMessage() {}
-
-bool PresentationSessionMessage::is_binary() const {
-  return data != nullptr;
-}
-
-}  // namespace content