Split Dictionary's get and convert into DictionaryHelper.

Source/modules/mediastream/RTCIceCandidate.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 23 matching lines @@
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ExceptionMessages.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 
 namespace WebCore {
 
 RTCIceCandidate* RTCIceCandidate::create(const Dictionary& dictionary, ExceptionState& exceptionState)
 {
     String candidate;
-    bool ok = dictionary.get("candidate", candidate);
+    bool ok = DictionaryHelper::get(dictionary, "candidate", candidate);
     if (!ok || !candidate.length()) {
         exceptionState.throwDOMException(TypeMismatchError, ExceptionMessages::incorrectPropertyType("candidate", "is not a string, or is empty."));
         return nullptr;
     }
 
     String sdpMid;
-    dictionary.get("sdpMid", sdpMid);
+    DictionaryHelper::get(dictionary, "sdpMid", sdpMid);
 
     unsigned short sdpMLineIndex = 0;
-    dictionary.get("sdpMLineIndex", sdpMLineIndex);
+    DictionaryHelper::get(dictionary, "sdpMLineIndex", sdpMLineIndex);
 
     return new RTCIceCandidate(blink::WebRTCICECandidate(candidate, sdpMid, sdpMLineIndex));
 }
 
 RTCIceCandidate* RTCIceCandidate::create(blink::WebRTCICECandidate webCandidate)
 {
     return new RTCIceCandidate(webCandidate);
 }
 
 RTCIceCandidate::RTCIceCandidate(blink::WebRTCICECandidate webCandidate)
@@ skipping 31 matching lines @@
 {
     m_webCandidate.setSdpMid(sdpMid);
 }
 
 void RTCIceCandidate::setSdpMLineIndex(unsigned short sdpMLineIndex)
 {
     m_webCandidate.setSdpMLineIndex(sdpMLineIndex);
 }
 
 } // namespace WebCore