Bug 1318724 - Increase the HTTP connection timeout for WebDriver tests, r=ato

The 5s timeout was not enough for debug builds. I don't really see a
reason to use something other than the default socket timeout here.

MozReview-Commit-ID: Fm5lgSI3lFb

testing/web-platform/tests/tools/webdriver/webdriver/transport.py

@@ -41,6 +41,7 @@ class Response(object):
 
         return cls(status, body)
 
+
 class HTTPWireProtocol(object):
     """Transports messages (commands and responses) over the WebDriver
     wire protocol.