Track install speed on devices and fail device status step on low battery.

build/android/buildbot/bb_device_steps.py

Index: build/android/buildbot/bb_device_steps.py
diff --git a/build/android/buildbot/bb_device_steps.py b/build/android/buildbot/bb_device_steps.py
index f9e2883b18900d4a53a7680cc2f43ba061a61de7..6ec9c877b4e1addc9c8b5fea6a882bab2fa168fb 100755
--- a/build/android/buildbot/bb_device_steps.py
+++ b/build/android/buildbot/bb_device_steps.py
@@ -162,15 +162,6 @@ def RunChromeDriverTests():
   RunCmd(['chrome/test/chromedriver/run_buildbot_steps.py',
           '--android-package=%s' % constants.CHROMIUM_TEST_SHELL_PACKAGE])
 
-
-def CheckInstall():
-  """Build bot step to see if adb install works on attached devices. """
-  buildbot_report.PrintNamedStep('Check device install')
-  # This step checks if apks can be installed on the devices.
-  args = ['--apk', 'build/android/CheckInstallApk-debug.apk']
-  RunCmd(['build/android/adb_install_apk.py'] + args, halt_on_failure=True)
-
-
 def InstallApk(options, test, print_step=False):
   """Install an apk to all phones.
 
@@ -286,9 +277,6 @@ def MainTestWrapper(options):
   target = options.factory_properties.get('target', 'Debug')
   RunCmd(['build/android/provision_devices.py', '-t', target])
 
-  # Check to see if devices can install apks.
-  CheckInstall()
-
   if options.install:
     test_obj = INSTRUMENTATION_TESTS[options.install]
     InstallApk(options, test_obj, print_step=True)