[Android] Add a "quiet" flag so KillAll doesn't complain if no processes killed

build/android/pylib/gtest/test_package_exe.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.
 
 """Defines TestPackageExecutable to help run stand-alone executables."""
 
 import logging
 import os
 import sys
 import tempfile
@@ skipping 60 matching lines @@
     except KeyError:
       logging.info('NATIVE_COVERAGE_DEPTH_STRIP is not defined: '
                    'No native coverage.')
       return ''
     except device_errors.CommandFailedError:
       logging.info('No external storage found: No native coverage.')
       return ''
 
   #override
   def ClearApplicationState(self, device):
-    try:
-      # We don't expect the executable to be running, so we don't attempt
-      # to retry on failure.
-      device.KillAll(self.suite_name, blocking=True, timeout=30, retries=0)
-    except device_errors.CommandFailedError:
-      # KillAll raises an exception if it can't find a process with the given
-      # name. We only care that there is no process with the given name, so
-      # we can safely eat the exception.
-      pass
+    device.KillAll(self.suite_name, blocking=True, timeout=30, quiet=True)
 
   #override
   def CreateCommandLineFileOnDevice(self, device, test_filter, test_arguments):
     tool_wrapper = self.tool.GetTestWrapper()
     sh_script_file = tempfile.NamedTemporaryFile()
     # We need to capture the exit status from the script since adb shell won't
     # propagate to us.
     sh_script_file.write(
         'cd %s\n'
         '%s'
@@ skipping 53 matching lines @@
             'stripped binary (%s, timestamp %d) older than '
             'source binary (%s, timestamp %d), build target %s' %
             (target_name, target_mtime, self.suite_path, source_mtime,
              self.suite_name + '_stripped'))
 
     test_binary_path = constants.TEST_EXECUTABLE_DIR + '/' + self.suite_name
     device.PushChangedFiles([(target_name, test_binary_path)])
     deps_path = self.suite_path + '_deps'
     if os.path.isdir(deps_path):
       device.PushChangedFiles([(deps_path, test_binary_path + '_deps')])