Make run-webkit-tests work with virtual parent LayoutTest directories

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
index 609f39ceb6e32150ab1eef0b67a8a11d16da63d8..74c93fc1b087895b3322c0bd6981c44a5744b202 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
@@ -38,6 +38,7 @@ import functools
 import json
 import logging
 import optparse
+import os
 import re
 import sys
 
@@ -1506,7 +1507,7 @@ class Port(object):
     def _virtual_tests_matching_paths(self, paths, suites):
         tests = []
         for suite in suites:
-            if any(p.startswith(suite.name) for p in paths):
+            if any(p.startswith(suite.name) for p in paths) or any(suite.name.startswith(os.path.join(p, '')) for p in paths):
                 self._populate_virtual_suite(suite)
             for test in suite.tests:
                 if any(test.startswith(p) for p in paths):