[Android] Keep track of unknown test results at the TestRunner layer.

build/android/run_tests.py

Index: build/android/run_tests.py
diff --git a/build/android/run_tests.py b/build/android/run_tests.py
index 14d54d1dac54cb70759d6eeb661ccac2950aca5f..5c80bf3a04ad1dfcd3bd6d787597f85311ea02c4 100755
--- a/build/android/run_tests.py
+++ b/build/android/run_tests.py
@@ -196,7 +196,6 @@ class TestSharder(BaseTestSharder):
         test_type='Unit test',
         test_package=test_runners[0].test_package.test_suite_basename,
         build_type=self.build_type,
-        all_tests=self.all_tests,
         flakiness_server=self.flakiness_server)
     test_results.PrintAnnotation()
 
@@ -265,7 +264,7 @@ def _RunATestSuite(options):
   for buildbot_emulator in buildbot_emulators:
     buildbot_emulator.Shutdown()
 
-  return len(test_results.failed)
+  return len(test_results.GetAllBroken())
 
 
 def Dispatch(options):