Use RTCPeerConnection instead of webkitRTCPeerConnection

chrome/test/data/extensions/api_test/tab_capture/performance.js

 // Copyright 2014 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.
 
 // The tests here cover the end-to-end functionality of tab capturing and
 // playback as video.  The page generates a test patter (moving balls) and
 // the rendering output of the tab is captured into a LocalMediaStream.  Then,
 // the LocalMediaStream is plugged into a video element for playback.
 //
 
@@ skipping 52 matching lines @@
   }
 
   // Kick it off.
   draw();
 }
 
 // Set up a WebRTC connection and pipe |stream| through it.
 function testThroughWebRTC(stream) {
   capture_stream = stream;
   console.log("Testing through webrtc.");
-  var sender = new webkitRTCPeerConnection(null);
-  var receiver = new webkitRTCPeerConnection(null);
+  var sender = new RTCPeerConnection();
+  var receiver = new RTCPeerConnection();
   sender.onicecandidate = function (event) {
     if (event.candidate) {
       receiver.addIceCandidate(new RTCIceCandidate(event.candidate));
     }
   };
   receiver.onicecandidate = function (event) {
     if (event.candidate) {
       sender.addIceCandidate(new RTCIceCandidate(event.candidate));
     }
   };
@@ skipping 31 matching lines @@
         }
       }
     },
     f);
 }
 
 chrome.test.runTests([ tabCapturePerformanceTest ]);
 
 // TODO(hubbe): Consider capturing audio as well, need to figure out how to
 // capture relevant statistics for that though.