[Android] With gyp_managed_install no device is only a warning

build/android/gyp/util/build_utils.py

 # Copyright 2013 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.
 
 import fnmatch
 import json
 import os
 import pipes
 import shlex
 import shutil
@@ skipping 63 matching lines @@
       outfile.write(new_dump)
 
 def ReadJson(path):
   with open(path, 'r') as jsonfile:
     return json.load(jsonfile)
 
 
 # This can be used in most cases like subprocess.check_call. The output,
 # particularly when the command fails, better highlights the command's failure.
 # This call will directly exit on a failure in the subprocess so that no python
-# stacktrace is printed after the output of the failed command.
+# stacktrace is printed after the output of the failed command (and will
+# instead print a python stack trace before the output of the failed command)
 def CheckCallDie(args, suppress_output=False, cwd=None):
   if not cwd:
     cwd = os.getcwd()
 
   child = subprocess.Popen(args,
       stdout=subprocess.PIPE, stderr=subprocess.STDOUT, cwd=cwd)
 
   stdout, _ = child.communicate()
 
   if child.returncode:
@@ skipping 26 matching lines @@
 
 def IsTimeStale(output, inputs):
   if not os.path.exists(output):
     return True
 
   output_time = GetModifiedTime(output)
   for input in inputs:
     if GetModifiedTime(input) > output_time:
       return True
   return False
+
+
+def IsDeviceReady():
+  device_state = CheckCallDie(['adb', 'get-state'], suppress_output=True)
+  return device_state.strip() == 'device'
+
+
+def PrintWarning(message):
+  print 'WARNING: ' + message
+
+
+def PrintBigWarning(message):
+  print '*****     ' * 8
+  PrintWarning(message)
+  print '*****     ' * 8