Re-add the path() method of WebKitPatch.

third_party/WebKit/Tools/Scripts/webkit-patch

 #!/usr/bin/env python
 # Copyright (c) 2011 Code Aurora Forum. All rights reserved.
 # Copyright (c) 2010 Google Inc. All rights reserved.
 # Copyright (c) 2009 Apple Inc. All rights reserved.
 # Copyright (C) 2010 Chris Jerdonek (cjerdonek@webkit.org)
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
@@ skipping 12 matching lines @@
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+import codecs
 import logging
+import os
 import signal
 import sys
-import codecs
 
 import webkitpy.common.version_check
 
 from webkitpy.common.system.logutils import configure_logging
 from webkitpy.tool.webkit_patch import WebKitPatch
 
 # A StreamWriter will by default try to encode all objects passed
 # to write(), so when passed a raw string already encoded as utf8,
 # it will blow up with an UnicodeDecodeError. This does not match
 # the default behaviour of writing to sys.stdout, so we intercept
@@ skipping 23 matching lines @@
 
 def main():
     # This is a hack to let us enable DEBUG logging as early as possible.
     # Note this can't be ternary as versioning.check_version()
     # hasn't run yet and this python might be older than 2.5.
     if set(["-v", "--verbose"]).intersection(set(sys.argv)):
         logging_level = logging.DEBUG
     else:
         logging_level = logging.INFO
     configure_logging(logging_level=logging_level)
-    WebKitPatch().main()
+    WebKitPatch(os.path.abspath(__file__)).main()
 
 
 if __name__ == "__main__":
     try:
         main()
     except KeyboardInterrupt:
         sys.exit(signal.SIGINT + 128)