[Android] Incorporate findbugs into android builds.

build/android/PRESUBMIT.py

 # Copyright (c) 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.
 
 """Presubmit script for android buildbot.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
 details on the presubmit API built into depot_tools.
 """
 
-_DELETIONS_ONLY_FILES = (
-    'build/android/findbugs_filter/findbugs_known_bugs.txt',
-)
-
-
-def _CheckDeletionsOnlyFiles(input_api, output_api):
-  """Check that a certain listed files only have deletions.
-  """
-  warnings = []
-  for f in input_api.AffectedFiles():
-    if f.LocalPath() in _DELETIONS_ONLY_FILES:
-      if f.ChangedContents():
-        warnings.append(f.LocalPath())
-  results = []
-  if warnings:
-    results.append(output_api.PresubmitPromptWarning(
-        'Following files should only contain deletions.', warnings))
-  return results
-
 
 def CommonChecks(input_api, output_api):
   output = []
 
   def J(*dirs):
     """Returns a path relative to presubmit directory."""
     return input_api.os_path.join(input_api.PresubmitLocalPath(), *dirs)
 
   output.extend(input_api.canned_checks.RunPylint(
       input_api,
@@ skipping 23 matching lines @@
       unit_tests=[
           J('pylib', 'device', 'device_utils_test.py'),
           J('pylib', 'device', 'logcat_monitor_test.py'),
           J('pylib', 'gtest', 'gtest_test_instance_test.py'),
           J('pylib', 'instrumentation',
             'instrumentation_test_instance_test.py'),
           J('pylib', 'results', 'json_results_test.py'),
           J('pylib', 'utils', 'md5sum_test.py'),
       ],
       env=pylib_test_env))
-  # TODO(jbudorick): Reenable this check once upstreaming is finished.
-  # output.extend(_CheckDeletionsOnlyFiles(input_api, output_api))
   return output
 
 
 def CheckChangeOnUpload(input_api, output_api):
   return CommonChecks(input_api, output_api)
 
 
 def CheckChangeOnCommit(input_api, output_api):
   return CommonChecks(input_api, output_api)