Support legacy offerToReceiveAudio/offerToReceiveVideo fields in RTCOfferAnswerOptions.

third_party/WebKit/Source/platform/exported/WebRTCAnswerOptions.cpp

 // Copyright 2016 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 "public/platform/WebRTCAnswerOptions.h"
 
 #include "platform/mediastream/RTCAnswerOptionsPlatform.h"
+#include "wtf/Assertions.h"
 
 namespace blink {
 
 WebRTCAnswerOptions::WebRTCAnswerOptions(RTCAnswerOptionsPlatform* options)
     : m_private(options)
 {
 }
 
 void WebRTCAnswerOptions::assign(const WebRTCAnswerOptions& other)
 {
     m_private = other.m_private;
 }
 
 void WebRTCAnswerOptions::reset()
 {
     m_private.reset();
 }
 
+int32_t WebRTCAnswerOptions::offerToReceiveVideo() const
+{
+    DCHECK(!isNull());
+    return m_private->offerToReceiveVideo();
+}
+
+int32_t WebRTCAnswerOptions::offerToReceiveAudio() const
+{
+    DCHECK(!isNull());
+    return m_private->offerToReceiveAudio();
+}
+
 bool WebRTCAnswerOptions::voiceActivityDetection() const
 {
-    ASSERT(!m_private.isNull());
+    DCHECK(!m_private.isNull());
     return m_private->voiceActivityDetection();
 }
 
 } // namespace blink