Add --keep_data as option to adb_install_apk

build/android/adb_install_apk.py

Index: build/android/adb_install_apk.py
diff --git a/build/android/adb_install_apk.py b/build/android/adb_install_apk.py
index 7601a3fc623601f44a51d72b2963e2352586bf7d..8728c089931028c6f19b50d27bbcaf9ce7966746 100755
--- a/build/android/adb_install_apk.py
+++ b/build/android/adb_install_apk.py
@@ -16,9 +16,9 @@ from pylib.utils import test_options_parser
 
 
 def _InstallApk(args):
-  apk_path, apk_package, device = args
+  apk_path, apk_package, keep_data, device = args
   result = android_commands.AndroidCommands(device=device).ManagedInstall(
-      apk_path, False, apk_package)
+      apk_path, keep_data, apk_package)
   print '-----  Installed on %s  -----' % device
   print result
 
@@ -42,6 +42,7 @@ def main(argv):
   # Send a tuple (apk_path, apk_package, device) per device.
   pool.map(_InstallApk, zip([options.apk] * len(devices),
                             [options.apk_package] * len(devices),
+                            [options.keep_data] * len(devices),
                             devices))