Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56582
Convert implementations of ActionHook.action(..) to use switch(enum) operator.
Second part: HTTP processors.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1599393 13f79535-47bb-0310-9956-ffa450edef68