Align the interface of TestHarness defined in gpu_tests/webgl_conformance.py with that in third_par…

content/test/gpu/gpu_tests/webgl_conformance.py

Index: content/test/gpu/gpu_tests/webgl_conformance.py
diff --git a/content/test/gpu/gpu_tests/webgl_conformance.py b/content/test/gpu/gpu_tests/webgl_conformance.py
index 3ac7dca9ead94642ac991a9353bd274d7d590bcb..46e083b6ebacb57c86b83a40267456d5f5514d60 100644
--- a/content/test/gpu/gpu_tests/webgl_conformance.py
+++ b/content/test/gpu/gpu_tests/webgl_conformance.py
@@ -29,7 +29,7 @@ conformance_harness_script = r"""
     testHarness._originalLog.apply(window.console, [msg]);
   }
 
-  testHarness.reportResults = function(success, msg) {
+  testHarness.reportResults = function(url, success, msg) {
     testHarness._allTestSucceeded = testHarness._allTestSucceeded && !!success;
     if(!success) {
       testHarness._failures++;
@@ -38,7 +38,7 @@ conformance_harness_script = r"""
       }
     }
   };
-  testHarness.notifyFinished = function() {
+  testHarness.notifyFinished = function(url) {
     testHarness._finished = true;
   };
   testHarness.navigateToPage = function(src) {