If install of test apk fails because of storage, wipe device data.

build/android/provision_devices.py

Index: build/android/provision_devices.py
diff --git a/build/android/provision_devices.py b/build/android/provision_devices.py
index 5cf1cc5d5cd36a262244d06366ced7b78caf9fce..53eb373ef8c43aa492bd1677c7b35fbb58c15c20 100755
--- a/build/android/provision_devices.py
+++ b/build/android/provision_devices.py
@@ -21,6 +21,7 @@ import time
 from pylib import android_commands
 from pylib import constants
 from pylib import device_settings
+from pylib.cmd_helper import GetCmdOutput
 
 
 def KillHostHeartbeat():
@@ -83,6 +84,33 @@ def _ConfigureLocalProperties(adb):
                             android_commands.LOCAL_PROPERTIES_PATH)
 
 
+def WipeDeviceData(device):
+  """Wipes data from device, keeping only the adb_keys for authorization.
+
+  After wiping data on a device that has been authorized, adb can still
+  communicate with the device, but after reboot the device will need to be
+  re-authorized because the adb keys file is stored in /data/misc/adb/.
+  Thus, before reboot the adb_keys file is rewritten so the device does not need
+  to be re-authorized.
+
+  Arguments:
+    device: the device to wipe
+  """
+  android_cmd = android_commands.AndroidCommands(device)
+  device_authorized = android_cmd.FileExistsOnDevice(constants.ADB_KEYS_FILE)
+  if device_authorized:
+    adb_keys = android_cmd.RunShellCommandWithSU(
+      'cat %s' % constants.ADB_KEYS_FILE)[0]
+  android_cmd.RunShellCommandWithSU('wipe data')
+  if device_authorized:
+    path_list = constants.ADB_KEYS_FILE.split('/')
+    dir_path = '/'.join(path_list[:len(path_list)-1])
+    android_cmd.RunShellCommandWithSU('mkdir -p %s' % dir_path)
+    adb_keys = android_cmd.RunShellCommand(
+      'echo %s > %s' % (adb_keys, constants.ADB_KEYS_FILE))
+  android_cmd.Reboot()
+
+
 def ProvisionDevices(options):
   if options.device is not None:
     devices = [options.device]
@@ -90,6 +118,14 @@ def ProvisionDevices(options):
     devices = android_commands.GetAttachedDevices()
   for device in devices:
     android_cmd = android_commands.AndroidCommands(device)
+    install_output = GetCmdOutput(
+      ['%s/build/android/adb_install_apk.py' % constants.DIR_SOURCE_ROOT,
+       '--apk',
+       '%s/build/android/CheckInstallApk-debug.apk' % constants.DIR_SOURCE_ROOT
+       ])
+    failure_string = 'Failure [INSTALL_FAILED_INSUFFICIENT_STORAGE]'
+    if failure_string in install_output:
+      WipeDeviceData(device)
     _ConfigureLocalProperties(android_cmd)
     device_settings.ConfigureContentSettingsDict(
         android_cmd, device_settings.DETERMINISTIC_DEVICE_SETTINGS)