Bug 919391 - Fix gzip_xml.py not finding resource_timing_test0.xml r=jgraham

MozReview-Commit-ID: 97JUyEvzG1V

testing/web-platform/tests/resource-timing/resources/gzip_xml.py

@@ -1,8 +1,10 @@
 import gzip as gzip_module
 from cStringIO import StringIO
+import os
 
 def main(request, response):
-    f = open('resource-timing/resources/resource_timing_test0.xml', 'r')
+    dir_path = os.path.dirname(os.path.realpath(__file__))
+    f = open(dir_path+'/resource_timing_test0.xml', 'r')
     output = f.read()
 
     out = StringIO()