Move max_failures option from PageTest to benchmark.

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 a5e70719050b3e5b7a88e5d50f0696e9d2d5c553..a9ca5cf2b926be5e5b5e5825e2e2225af5f2bc49 100644
--- a/content/test/gpu/gpu_tests/webgl_conformance.py
+++ b/content/test/gpu/gpu_tests/webgl_conformance.py
@@ -66,7 +66,7 @@ def _WebGLTestMessages(tab):
 
 class WebglConformanceValidator(page_test.PageTest):
   def __init__(self):
-    super(WebglConformanceValidator, self).__init__(max_failures=10)
+    super(WebglConformanceValidator, self).__init__()
 
   def ValidateAndMeasurePage(self, page, tab, results):
     if not _DidWebGLTestSucceed(tab):
@@ -99,6 +99,9 @@ class WebglConformance(benchmark_module.Benchmark):
   """Conformance with Khronos WebGL Conformance Tests"""
   test = WebglConformanceValidator
 
+  def __init__(self):
+    super(WebglConformance, self).__init__(max_failures=10)
+
   @classmethod
   def AddBenchmarkCommandLineArgs(cls, group):
     group.add_option('--webgl-conformance-version',