fix(touch): requestAnimationFrame before sending tap (#1142)
fix(touch): requestAnimationFrame before sending tap (#1142)

This patch adds a work-around for the upstream bug, issuing double-raf before emulating touch event.

References #673 
GoogleChrome/puppeteer,puppeteer/puppeteer,brutalcrozt/puppeteer,GoogleChrome/puppeteer,GoogleChrome/puppeteer,brutalcrozt/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer