fix(Launcher): Terminate chrome gracefully on Windows (#876)
fix(Launcher): Terminate chrome gracefully on Windows (#876)

This patch starts using taskkill program on windows to gracefully
terminate chrome.

Note: this slows down chrome shutdown on Windows in case of using
custom userDataDir. This is because chrome takes some time to shutdown
its operations and leave profile directory in a consistent state.

Fixes #839.
elisherer/puppeteer,brutalcrozt/puppeteer,elisherer/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer,a1ph/puppeteer,GoogleChrome/puppeteer,brutalcrozt/puppeteer,puppeteer/puppeteer,GoogleChrome/puppeteer,puppeteer/puppeteer,a1ph/puppeteer,GoogleChrome/puppeteer