Update from https://crrev.com/306655

build/android/pylib/gtest/test_package_apk.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Defines TestPackageApk to help run APK-based native tests."""
 # pylint: disable=W0212
 
 import logging
 import os
 import shlex
@@ skipping 22 matching lines @@
       self.suite_path = os.path.join(
           constants.GetOutDirectory(), 'apks', '%s.apk' % suite_name)
       self._package_info = constants.PACKAGE_INFO['content_browsertests']
     else:
       self.suite_path = os.path.join(
           constants.GetOutDirectory(), '%s_apk' % suite_name,
           '%s-debug.apk' % suite_name)
       self._package_info = constants.PACKAGE_INFO['gtest']
 
   def _CreateCommandLineFileOnDevice(self, device, options):
-    command_line_file = tempfile.NamedTemporaryFile()
-    # GTest expects argv[0] to be the executable path.
-    command_line_file.write(self.suite_name + ' ' + options)
-    command_line_file.flush()
-    device.PushChangedFiles([(
-        command_line_file.name,
-        self._package_info.cmdline_file)])
+    device.WriteFile(self._package_info.cmdline_file,
+                     self.suite_name + ' ' + options)
 
   def _GetFifo(self):
     # The test.fifo path is determined by:
     # testing/android/java/src/org/chromium/native_test/
     #     ChromeNativeTestActivity.java and
     # testing/android/native_test_launcher.cc
     return '/data/data/' + self._package_info.package + '/files/test.fifo'
 
   def _ClearFifo(self, device):
     device.RunShellCommand('rm -f ' + self._GetFifo())
@@ skipping 66 matching lines @@
       self._StartActivity(device)
     finally:
       self.tool.CleanUpEnvironment()
     logfile = android_commands.NewLineNormalizer(sys.stdout)
     return self._WatchFifo(device, timeout=10, logfile=logfile)
 
   #override
   def Install(self, device):
     self.tool.CopyFiles(device)
     device.Install(self.suite_path)