- implement WebMutableURLRequest::setHTTPShouldHandleCookies()
        - add and implement WebMutableURLRequest::mutableCopy()

        * Interfaces/IWebURLRequest.idl:
        * WebMutableURLRequest.cpp:
        (WebMutableURLRequest::setHTTPShouldHandleCookies):
        (WebMutableURLRequest::mutableCopy):
        * WebMutableURLRequest.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@38086 268f45cc-cd09-0410-ab3c-d52691b4dbfc