[Qt] Removing no-ops and simple setters/getters from TestRunnerQt
https://bugs.webkit.org/show_bug.cgi?id=112340

Reviewed by Simon Hausmann.

* DumpRenderTree/qt/DumpRenderTreeQt.cpp:
(DumpRenderTree::dump):
    Replace shouldDumpBackForwardList() with TestController:dumpBackForwardList().
(DumpRenderTree::dumpApplicationCacheQuota):
* DumpRenderTree/qt/TestRunnerQt.cpp:
(TestRunnerQt::reset):
* DumpRenderTree/qt/TestRunnerQt.h:
(TestRunnerQt):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@145804 268f45cc-cd09-0410-ab3c-d52691b4dbfc