Add a copy or move validator to that can handle support audio and video files.

chrome/browser_tests.isolate

 # 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.
 {
   'conditions': [
     ['OS=="linux"', {
       'variables': {
         'command': [
           '../testing/xvfb.py',
           '<(PRODUCT_DIR)',
@@ skipping 21 matching lines @@
       'variables': {
         'isolate_dependency_tracked': [
           'browser/nacl_host/test/debug_stub_browser_tests.py',
           'browser/nacl_host/test/gdb_rsp.py',
         ],
       },
     }],
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'isolate_dependency_tracked': [
+          '../media/test/data/bear-320x240-multitrack.webm',
+          '../media/test/data/no_streams.webm',
+          '../media/test/data/sfx.ogg',
           '../ppapi/tests/test_case.html',
           '../ppapi/tests/test_page.css',
           '../tools/swarm_client/run_isolated.py',
           '../tools/swarm_client/googletest/run_test_cases.py',
           '../testing/test_env.py',
           '<(PRODUCT_DIR)/browser_tests<(EXECUTABLE_SUFFIX)',
           '<(PRODUCT_DIR)/ppapi_nacl_tests_glibc.nmf',
           '<(PRODUCT_DIR)/ppapi_nacl_tests_newlib.nmf',
           '<(PRODUCT_DIR)/ppapi_nacl_tests_pnacl.nmf',
           '<(PRODUCT_DIR)/resources.pak',
@@ skipping 103 matching lines @@
         ],
         'isolate_dependency_untracked': [
           '../third_party/npapi/npspy/extern/plugin/',
           '../third_party/psyco_win32/psyco/',
           '../third_party/python_26/',
         ],
       },
     }],
   ],
 }