[Android] Suppress findbugs stderr output.

build/java_apk.gypi

 # 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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Android APKs in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my_package_apk',
@@ skipping 703 matching lines @@
       'dependencies': [
         '<(DEPTH)/build/android/pylib/device/commands/commands.gyp:chromium_commands',
         '<(DEPTH)/tools/android/android_tools.gyp:android_tools',
       ]
     }],
     ['run_findbugs == 1', {
       'actions': [
         {
           'action_name': 'findbugs_<(_target_name)',
           'message': 'Running findbugs on <(_target_name)',
+          'variables': {
+            'additional_findbugs_args': [],
+            'findbugs_verbose%': 0,
+          },
+          'conditions': [
+            ['findbugs_verbose == 1', {
+              'variables': {
+                'additional_findbugs_args+': ['-vv'],
+              },
+            }],
+          ],
           'inputs': [
             '<(DEPTH)/build/android/findbugs_diff.py',
             '<(DEPTH)/build/android/findbugs_filter/findbugs_exclude.xml',
             '<(DEPTH)/build/android/pylib/utils/findbugs.py',
             '>@(input_jars_paths)',
             '<(jar_path)',
             '<(compile_stamp)',
           ],
           'outputs': [
             '<(findbugs_stamp)',
           ],
           'action': [
             'python', '<(DEPTH)/build/android/findbugs_diff.py',
             '--auxclasspath-gyp', '>(input_jars_paths)',
             '--stamp', '<(findbugs_stamp)',
+            '<@(additional_findbugs_args)',
             '<(jar_path)',
           ],
         },
       ],
     },
     ]
   ],
   'dependencies': [
     '<(DEPTH)/tools/android/md5sum/md5sum.gyp:md5sum',
   ],
@@ skipping 305 matching lines @@
             'native_libs_dir': '<(apk_package_native_libs_dir)',
           }, {
             'native_libs_dir': '<(DEPTH)/build/android/ant/empty/res',
           }],
         ],
       },
       'includes': ['android/apkbuilder_action.gypi'],
     },
   ],
 }