nrwt: make --skip-pixel-test-if-no-baseline option

nrwt: make --skip-pixel-test-if-no-baseline option
https://bugs.webkit.org/show_bug.cgi?id=70484

Patch by Fehér Zsolt <feherzs@inf.u-szeged.hu> on 2012-02-08
Reviewed by Dirk Pranke.

* Scripts/webkitpy/layout_tests/controllers/single_test_runner.py:
(SingleTestRunner.__init__):
(SingleTestRunner._should_fetch_expected_checksum):
* Scripts/webkitpy/layout_tests/controllers/worker.py:
(Worker.handle_test_list):
* Scripts/webkitpy/layout_tests/models/test_input.py:
(TestInput.__init__):
* Scripts/webkitpy/layout_tests/port/webkit.py:
(WebKitDriver.cmd_line):
* Scripts/webkitpy/layout_tests/run_webkit_tests.py:
(_set_up_derived_options):
(parse_args):
* Scripts/webkitpy/layout_tests/run_webkit_tests_integrationtest.py:
(MainTest.test_skip_pixel_test_if_no_baseline_option):
* WebKitTestRunner/TestController.cpp:
(WTR::TestController::TestController):
(WTR::TestController::initialize):
(WTR::TestController::runTest):
* WebKitTestRunner/TestController.h:
(TestController):
* WebKitTestRunner/TestInvocation.cpp:
(WTR::TestInvocation::TestInvocation):
(WTR::TestInvocation::setIsPixelTest):
* WebKitTestRunner/TestInvocation.h:
(WTR::TestInvocation::setSkipPixelTestOption):
(TestInvocation):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@107113 268f45cc-cd09-0410-ab3c-d52691b4dbfc