Added tombstones in instrumentation tests results.

build/android/pylib/instrumentation/instrumentation_test_instance.py

Index: build/android/pylib/instrumentation/instrumentation_test_instance.py
diff --git a/build/android/pylib/instrumentation/instrumentation_test_instance.py b/build/android/pylib/instrumentation/instrumentation_test_instance.py
index 62e62b8034a77649bb69cf741d092d57960f916f..d6a20ec7c01e5b61dd3f842141041537a42a1152 100644
--- a/build/android/pylib/instrumentation/instrumentation_test_instance.py
+++ b/build/android/pylib/instrumentation/instrumentation_test_instance.py
@@ -393,6 +393,9 @@ class InstrumentationTestInstance(test_instance.TestInstance):
     self._coverage_directory = None
     self._initializeTestCoverageAttributes(args)
 
+    self._tombstones = False

[jbudorick, 2016/08/01 17:39:18]

Both the argument and the variable should have a slightly different name. As is,
it's not clear that this is a flag -- instead, the name implies that this is
storing the tombstones.

[BigBossZhiling, 2016/08/01 22:35:12]

Done.

+    self._initializeTombStonesAttributes(args)
+
   def _initializeApkAttributes(self, args, error_func):
     if args.apk_under_test:
       apk_under_test_path = args.apk_under_test
@@ -535,6 +538,9 @@ class InstrumentationTestInstance(test_instance.TestInstance):
   def _initializeTestCoverageAttributes(self, args):
     self._coverage_directory = args.coverage_dir
 
+  def _initializeTombStonesAttributes(self, args):

[jbudorick, 2016/08/01 17:39:18]

nit: Tombstones, not TombStones

[BigBossZhiling, 2016/08/01 22:35:12]

Done.

+    self._tombstones = args.tombstones
+
   @property
   def additional_apks(self):
     return self._additional_apks
@@ -607,6 +613,10 @@ class InstrumentationTestInstance(test_instance.TestInstance):
   def timeout_scale(self):
     return self._timeout_scale
 
+  @property
+  def tombstones(self):
+    return self._tombstones
+
   #override
   def TestType(self):
     return 'instrumentation'