Adding window_size to chrome

Just noticing that this option is supported meanwhile.

Author: ThomasLandauer

src/Codeception/Module/WebDriver.php

@@ -126,10 +126,10 @@
  * modules:
  *    enabled:
  *       - WebDriver:
+ *          browser: chrome
  *          url: 'http://localhost/'
- *          window_size: false # disabled in ChromeDriver
+ *          window_size: 2000x1000
  *          port: 9515
- *          browser: chrome
  *          capabilities:
  *              chromeOptions:
  *                  args: ["--headless", "--disable-gpu"] # Run Chrome in headless mode
@@ -150,8 +150,9 @@
  * modules:
  *    enabled:
  *       - WebDriver:
- *          url: 'http://localhost/'
  *          browser: firefox
+ *          url: 'http://localhost/'
+ *          window_size: 2000x1000
  *          path: ''
  *          capabilities:
  *              acceptInsecureCerts: true # allow self-signed certificates