Drop warnings from adb shell output

build/android/pylib/android_commands.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Provides an interface to communicate with the device via the adb command.
 
 Assumes adb binary is currently on system path.
 """
 
 import collections
@@ skipping 623 matching lines @@
                   shell command.
 
     Returns:
       list containing the lines of output received from running the command
     """
     self._CheckCommandIsValid(command)
     self._LogShell(command)
     if "'" in command: logging.warning(command + " contains ' quotes")
     result = self._adb.SendShellCommand(
         "'%s'" % command, timeout_time).splitlines()
+    # TODO(b.kelemen): we should really be able to drop the stderr of the
+    # command or raise an exception based on what the caller wants.
+    result = [ l for l in result if not l.startswith('WARNING') ]
     if ['error: device not found'] == result:
       raise errors.DeviceUnresponsiveError('device not found')
     if log_result:
       self._LogShell('\n'.join(result))
     return result
 
   def GetShellCommandStatusAndOutput(self, command, timeout_time=20,
                                      log_result=False):
     """See RunShellCommand() above.
 
@@ skipping 1130 matching lines @@
   """
   def __init__(self, output):
     self._output = output
 
   def write(self, data):
     data = data.replace('\r\r\n', '\n')
     self._output.write(data)
 
   def flush(self):
     self._output.flush()