[Android] Remove android_commands uses from build/android/.

build/android/screenshot.py

Index: build/android/screenshot.py
diff --git a/build/android/screenshot.py b/build/android/screenshot.py
index 8fe2a95ddd9948e783f7c0831abf4deb421fea91..ef0899470e83d7db828a03a98485d5fb5d8a96d9 100755
--- a/build/android/screenshot.py
+++ b/build/android/screenshot.py
@@ -11,8 +11,8 @@ import optparse
 import os
 import sys
 
-from pylib import android_commands
 from pylib import screenshot
+from pylib.device import adb_wrapper
 from pylib.device import device_utils
 
 def _PrintMessage(heading, eol='\n'):
@@ -69,7 +69,7 @@ def main():
   if options.verbose:
     logging.getLogger().setLevel(logging.DEBUG)
 
-  devices = android_commands.GetAttachedDevices()
+  devices = adb_wrapper.AdbWrapper.GetDevices()
 
   if not options.device and len(devices) > 1:
     parser.error('Multiple devices are attached. '