Remove old-style constraints from Chrome internals

content/test/data/media/webrtc_test_utilities.js

 // Copyright (c) 2012 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.
 
 // These must match with how the video and canvas tags are declared in html.
 const VIDEO_TAG_WIDTH = 320;
 const VIDEO_TAG_HEIGHT = 240;
 
 // Fake video capture background green is of value 135.
 const COLOR_BACKGROUND_GREEN = 135;
@@ skipping 62 matching lines @@
     if (canvas == null) {
       console.log('Waiting for ' + videoElementName + '-canvas' + ' to appear');
       return;
     }
     var context = canvas.getContext('2d');
     context.drawImage(videoElement, 0, 0, width, height);
     var pixels = context.getImageData(0, 0 , width, height / 3).data;
     // Check that there is an old and a new picture with the same size to
     // compare and use the function |predicate| to detect the video state in
     // that case.
+    // There's a failure(?) mode here where the video generated claims to
+    // have size 2x2. Don't consider that a valid video.
     if (oldPixels.length == pixels.length &&
         predicate(pixels, oldPixels)) {
       console.log('Done looking at video in element ' + videoElementName);
+      console.log('DEBUG: video.width = ' + videoElement.videoWidth);
+      console.log('DEBUG: video.height = ' + videoElement.videoHeight);
       clearInterval(waitVideo);
       callback(videoElement.videoWidth, videoElement.videoHeight);
     }
     oldPixels = pixels;
     var elapsedTime = new Date().getTime() - startTimeMs;
     if (elapsedTime > 3000) {
       startTimeMs = new Date().getTime();
       console.log('Still waiting for video to satisfy ' + predicate.toString());
+      console.log('DEBUG: video.width = ' + videoElement.videoWidth);
+      console.log('DEBUG: video.height = ' + videoElement.videoHeight);
+      // clearInterval(waitVideo);
+      // callback(0, 0);
     }
   }, 200);
 }
 
 function waitForVideoWithResolution(element, expected_width, expected_height) {
   addExpectedEvent();
   detectVideoPlaying(element,
       function (width, height) {
         assertEquals(expected_width, width);
         assertEquals(expected_height, height);
@@ skipping 149 matching lines @@
       if (device.kind == 'video')
         hasVideoInputDevice = true;
     });
 
     if (hasVideoInputDevice)
       sendValueToTest('has-video-input-device');
     else
       sendValueToTest('no-video-input-devices');
   });
 }