Merge pull request #10399 from MohammedEssehemy/master

migrate to canvas 2.x api

examples/node/pdf2png/pdf2png.js

@@ -21,7 +21,7 @@ function NodeCanvasFactory() {}
 NodeCanvasFactory.prototype = {
  create: function NodeCanvasFactory_create(width, height) {
  assert(width > 0 && height > 0, 'Invalid canvas size');
- var canvas = new Canvas(width, height);
+ var canvas = Canvas.createCanvas(width, height);
  var context = canvas.getContext('2d');
  return {
  canvas: canvas,