Removed polymer & mirror from Observatory

tools/observatory_tool.py

 #!/usr/bin/env python
 # Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 """Helper for building and deploying Observatory"""
 
 import argparse
 import os
 import platform
 import shutil
 import subprocess
 import sys
 import utils
 
 SCRIPT_DIR = os.path.dirname(sys.argv[0])
 DART_ROOT = os.path.realpath(os.path.join(SCRIPT_DIR, '..'))
 PUB_PATH = os.path.join(DART_ROOT, 'third_party', 'pkg',
                         'pub', 'bin', 'pub.dart')
 IGNORE_PATTERNS = shutil.ignore_patterns(
     '*.map',
     '*.concat.js',
     '*.scriptUrls',
     '*.precompiled.js',
-    'main.*',
+    'bower.json',
+    'package.json',
+    'CustomElements.*',
+    'dart_support.*',
+    'interop_support.*',
+    'HTMLImports.*',
+    'MutationObserver.*',
+    'ShadowDOM.*',
+    'webcomponents.*',
+    'webcomponents-lite.js',
     'unittest*',
     '*_buildLogs*',
     '*.log',
     '*~')
 
 usage = """observatory_tool.py [options]"""
 
 def CreateTimestampFile(options):
   if options.stamp != '':
     dir_name = os.path.dirname(options.stamp)
@@ skipping 183 matching lines @@
   # Pub must be run from the project's root directory.
   ChangeDirectory(options.directory)
   result = ExecuteCommand(options, args)
   if result == 0:
     CreateTimestampFile(options)
   return result
 
 
 if __name__ == '__main__':
   sys.exit(main());