[Android] Change how we write command line files for gtest APKs.

build/android/pylib/gtest/test_package_apk.py

Index: build/android/pylib/gtest/test_package_apk.py
diff --git a/build/android/pylib/gtest/test_package_apk.py b/build/android/pylib/gtest/test_package_apk.py
index 4a9127856731cc2df03f2dd4e69c1b95e5031910..67571a4a4f98e9149edda9a03bbaaebe9d81e5db 100644
--- a/build/android/pylib/gtest/test_package_apk.py
+++ b/build/android/pylib/gtest/test_package_apk.py
@@ -40,13 +40,8 @@ class TestPackageApk(TestPackage):
       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: