Fix the stack script issue when symbolizing tombstones.

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 2443384e51864c28c3a3c22d2b19f34704ae8aca..d9c7bdfb4e89c8bc522198c27f82e642fd9f4fbb 100644
--- a/build/android/pylib/instrumentation/instrumentation_test_instance.py
+++ b/build/android/pylib/instrumentation/instrumentation_test_instance.py
@@ -7,6 +7,8 @@ import logging
 import os
 import pickle
 import re
+import shutil
+import tempfile
 
 from devil.android import apk_helper
 from devil.android import md5sum
@@ -21,6 +23,8 @@ from pylib.utils import dexdump
 from pylib.utils import proguard
 from pylib.utils import shared_preference_utils
 
+import tombstones_helper
+
 with host_paths.SysPath(host_paths.BUILD_COMMON_PATH):
   import unittest_util # pylint: disable=import-error
 
@@ -443,6 +447,8 @@ class InstrumentationTestInstance(test_instance.TestInstance):
     self._initializeTestCoverageAttributes(args)
 
     self._store_tombstones = False
+    self._unzipped_files_dir = None
+    self._tombstones_helper = tombstones_helper.TombstonesHelper()
     self._initializeTombstonesAttributes(args)
 
     self._gs_results_bucket = None
@@ -624,6 +630,11 @@ class InstrumentationTestInstance(test_instance.TestInstance):
 
   def _initializeTombstonesAttributes(self, args):
     self._store_tombstones = args.store_tombstones
+    self._unzipped_files_dir = tempfile.mkdtemp()
+    self._tombstones_helper = tombstones_helper.TombstonesHelper(
+        self.apk_under_test.path if self.apk_under_test else None,
+        args.enable_relocation_packing,
+        self._unzipped_files_dir)
 
   def _initializeLogAttributes(self, args):
     self._gs_results_bucket = args.gs_results_bucket
@@ -716,6 +727,10 @@ class InstrumentationTestInstance(test_instance.TestInstance):
   def suite(self):
     return self._suite
 
+  @property
+  def tombstones_helper(self):
+    return self._tombstones_helper
+
   @property
   def test_apk(self):
     return self._test_apk
@@ -846,4 +861,5 @@ class InstrumentationTestInstance(test_instance.TestInstance):
 
   #override
   def TearDown(self):
-    pass
+    if self._unzipped_files_dir:
+      shutil.rmtree(self._unzipped_files_dir)