PRESUBMIT should only check line length for .html files in c/b/resources

chrome/browser/resources/PRESUBMIT.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 script for files in chrome/browser/resources.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
@@ skipping 74 matching lines @@
   html_element_re = r'<(.*?)(^|\s+)metric\s*=\s*"%s"(.*?)>' % (metric_name)
   type_re = (r'datatype\s*=\s*"boolean"|type\s*=\s*"checkbox"|'
       'type\s*=\s*"radio".*?value\s*=\s*("true"|"false")')
 
   match = input_api.re.search(html_element_re, new_content, input_api.re.DOTALL)
   return (match and
       any(input_api.re.search(type_re, match.group(i)) for i in (1, 3)))
 
 
 def CheckHtml(input_api, output_api):
-  return input_api.canned_checks.CheckLongLines(input_api, output_api, 80)
+  return input_api.canned_checks.CheckLongLines(
+      input_api, output_api, 80, lambda x: x.LocalPath().endswith('.html'))
 
 
 def RunVulcanizeTests(input_api, output_api):
   presubmit_path = input_api.PresubmitLocalPath()
   tests = [input_api.os_path.join(presubmit_path, 'vulcanize_gn_test.py')]
   return input_api.canned_checks.RunUnitTests(input_api, output_api, tests)
 
 
 def _CheckChangeOnUploadOrCommit(input_api, output_api):
   results = CheckUserActionUpdate(input_api, output_api, ACTION_XML_PATH)
@@ skipping 13 matching lines @@
   return _CheckChangeOnUploadOrCommit(input_api, output_api)
 
 
 def PostUploadHook(cl, change, output_api):
   return output_api.EnsureCQIncludeTrybotsAreAdded(
     cl,
     [
       'master.tryserver.chromium.linux:closure_compilation',
     ],
     'Automatically added optional Closure bots to run on CQ.')