Disable testWebPageReplay on chromeos.

telemetry/telemetry/page/page_run_end_to_end_unittest.py

Index: telemetry/telemetry/page/page_run_end_to_end_unittest.py
diff --git a/telemetry/telemetry/page/page_run_end_to_end_unittest.py b/telemetry/telemetry/page/page_run_end_to_end_unittest.py
index f6ad3915cbe2f0402e653afe4149bf405e77c0e9..465e31a606a53df601d9f82f96eb338110690edf 100644
--- a/telemetry/telemetry/page/page_run_end_to_end_unittest.py
+++ b/telemetry/telemetry/page/page_run_end_to_end_unittest.py
@@ -571,6 +571,7 @@ class ActualPageRunEndToEndTests(unittest.TestCase):
     self.assertEquals(2, len(results.failures))  # max_failures + 1
     self.assertFormattedExceptionIsEmpty()
 
+  @decorators.Disabled('chromeos')  # crbug.com/762819
   def testWebPageReplay(self):
     story_set = example_domain.ExampleDomainPageSet()
     body = []