web_dev_style: Fix errors in new directories and enable PRESUBMIT

tools/web_dev_style/html_checker.py

 # Copyright 2014 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 for Chromium HTML resources. See chrome/browser/PRESUBMIT.py.
 """
 
 import regex_check
 
@@ skipping 69 matching lines @@
     regex = self.input_api.re.compile(r"=(\[\[|\{\{)")
     return regex_check.RegexCheck(self.input_api.re, line_number, line, regex,
         'Please use quotes around Polymer bindings (i.e. attr="[[prop]]")')
 
   def RunChecks(self):
     """Check for violations of the Chromium web development style guide. See
        https://chromium.googlesource.com/chromium/src/+/master/styleguide/web/web.md
     """
     results = []
 
-    affected_files = self.input_api.change.AffectedFiles(
-        file_filter=self.file_filter, include_deletes=False)
+    affected_files = self.input_api.AffectedFiles(file_filter=self.file_filter,
+                                                  include_deletes=False)

[Dan Beam, 2017/05/18 18:02:25]

.change.AffectedFiles -> AffectedFiles fixes checking outside of presubmit dir

[tsergeant, 2017/05/18 21:54:03]

Great, thanks!

 
     for f in affected_files:
       if not f.LocalPath().endswith('.html'):
         continue
 
       errors = []
 
       for line_number, line in f.ChangedContents():
         errors.extend(filter(None, [
             self.ClassesUseDashFormCheck(line_number, line),
             self.DoNotCloseSingleTagsCheck(line_number, line),
             self.DoNotUseBrElementCheck(line_number, line),
             self.DoNotUseInputTypeButtonCheck(line_number, line),
             self.I18nContentJavaScriptCaseCheck(line_number, line),
             self.LabelCheck(line_number, line),
             self.QuotePolymerBindings(line_number, line),
         ]))
 
       if errors:
         abs_local_path = f.AbsoluteLocalPath()
         file_indicator = 'Found HTML style issues in %s' % abs_local_path
         prompt_msg = file_indicator + '\n\n' + '\n'.join(errors) + '\n'
         results.append(self.output_api.PresubmitPromptWarning(prompt_msg))
 
     return results