[Chromoting] Remove warning for unused strings.

remoting/tools/verify_resources.py

 #!/usr/bin/env python
 # 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.
 
 """Verifies that GRD resource files define all the strings used by a given
 set of source files. For file formats where it is not possible to infer which
 strings represent message identifiers, localized strings should be explicitly
 annotated with the string "i18n-content", for example:
 
@@ skipping 75 matching lines @@
     # Jinja2 template file
     m = re.search('\{\%\s+trans\s+\%\}([A-Z0-9_]+)\{\%\s+endtrans\s+\%\}', line)
     if m: return m.group(1)
   return None
 
 
 def VerifyFile(filename, messages, used_tags):
   """
   Parse |filename|, looking for tags and report any that are not included in
   |messages|. Return True if all tags are present and correct, or False if
-  any are missing. If no tags are found, print a warning message and return
-  True.
+  any are missing.
   """
 
   base_name, file_type = os.path.splitext(filename)
   file_type = file_type[1:]
   if file_type == 'jinja2' and base_name.endswith('.json'):
     file_type = 'json.jinja2'
   if file_type not in ['js', 'cc', 'html', 'json.jinja2', 'jinja2', 'mm']:
     raise Exception("Unknown file type: %s" % file_type)
 
   result = True
   matches = False
   f = open(filename, 'r')
   lines = f.readlines()
   for i in xrange(0, len(lines)):
     tag = ExtractTagFromLine(file_type, lines[i])
     if tag:
       tag = tag.upper()
       used_tags.add(tag)
       matches = True
       if not tag in messages:
         result = False
         print '%s/%s:%d: error: Undefined tag: %s' % \
             (os.getcwd(), filename, i + 1, tag)
-  if not matches:
-    print '%s/%s:0: warning: No tags found' % (os.getcwd(), filename)
   f.close()
   return result
 
 
 def main():
   parser = optparse.OptionParser(
       usage='Usage: %prog [options...] [source_file...]')
   parser.add_option('-t', '--touch', dest='touch',
                     help='File to touch when finished.')
   parser.add_option('-r', '--grd', dest='grd', action='append',
@@ skipping 35 matching lines @@
   if exit_code == 0:
     f = open(options.touch, 'a')
     f.close()
     os.utime(options.touch, None)
 
   return exit_code
 
 
 if __name__ == '__main__':
   sys.exit(main())