Fix the stack script issue when symbolizing tombstones.

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index 835888b02a16a9a11cec9f042f678f9a60149ebd..58878a9ab39dd501761055e4287635e60cdc6b8f 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -14,6 +14,7 @@ import logging
 import os
 import shutil
 import signal
+import subprocess
 import sys
 import threading
 import traceback
@@ -786,6 +787,12 @@ def RunTestsInPlatformMode(args):
       upload_logcats_file(),
       'upload_logcats_file' in args and args.upload_logcats_file)
 
+  if args.apk_under_test:
+    subprocess.check_call(
+        'unzip -o %s -d %s' % (args.apk_under_test,
+                               constants.GetOutDirectory()),
+        shell=True)

[mikecase (-- gone --), 2017/07/10 22:51:33]

where is the unzipped APK used?

[BigBossZhiling, 2017/07/11 08:02:58]

hmm I thought the stack file would automatically search for *.so files in
<out-dir>/lib. It doesn't seem so. I added the *.so as --packed-lib args for the
stack script.

+
   ### Set up test objects.
 
   env = environment_factory.CreateEnvironment(args, infra_error)