Merge pull request #2005 from swrobel/patch-1

Only disable headless chrome gpu on Windows

lib/capybara.rb

@@ -496,6 +496,6 @@ end
 Capybara.register_driver :selenium_chrome_headless do |app|
   browser_options = ::Selenium::WebDriver::Chrome::Options.new
   browser_options.args << '--headless'
-  browser_options.args << '--disable-gpu'
+  browser_options.args << '--disable-gpu' if Gem.win_platform?
   Capybara::Selenium::Driver.new(app, browser: :chrome, options: browser_options)
 end