web_dev_style: Fix errors in new directories and enable PRESUBMIT

tools/web_dev_style/css_checker_test.py

 #!/usr/bin/env python
 # Copyright 2015 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.
 
 import css_checker
 from os import path as os_path
 import re
 from sys import path as sys_path
 import unittest
@@ skipping 167 matching lines @@
 }""", """
 - Start braces ({) end a selector, have a space before them and no rules after.
     div{
     {""")
 
   def testCssClassesUseDashes(self):
     self.VerifyContentsProducesOutput("""
 .className,
 .ClassName,
 .class-name /* We should not catch this. */,
-.class_name {
+.class_name,
+[i18n-values*='.innerHTML:'] {
   display: block;
 }""", """
  - Classes use .dash-form.
     .className,
     .ClassName,
-    .class_name {""")
+    .class_name,""")
 
   def testCssCloseBraceOnNewLine(self):
     self.VerifyContentsProducesOutput("""
 @media { /* TODO(dbeam) Fix this case. */
   .rule {
     display: block;
   }}
 
 @-webkit-keyframe blah {
   from { height: rotate(-10turn); }
@@ skipping 197 matching lines @@
 
   def testCssZeroWidthLengths(self):
     self.VerifyContentsProducesOutput("""
 @-webkit-keyframe anim {
   0% { /* Ignore key frames */
     width: 0px;
   }
   10% {
     width: 10px;
   }
+  50% { background-image: url(blah.svg); }
   100% {
     width: 100px;
   }
 }
 
 #logo {
   background-image: url(images/google_logo.png@2x);
 }
 
 body.alternate-logo #logo {
   -webkit-mask-image: url(images/google_logo.png@2x);
 }
 
 /* http://crbug.com/359682 */
 #spinner-container #spinner {
   -webkit-animation-duration: 1.0s;
+  background-image: url(images/google_logo0.svg);
 }
 
 .media-button.play > .state0.active,
 .media-button[state='0'] > .state0.normal /* blah */, /* blee */
 .media-button[state='0']:not(.disabled):hover > .state0.hover {
   -webkit-animation: anim 0s;
   -webkit-animation-duration: anim 0ms;
   -webkit-transform: scale(0%);
   background-position-x: 0em;
   background-position-y: 0ex;
@@ skipping 70 matching lines @@
   </style>
 </head>
 </html>""", """
 - Colons (:) should have a space after them.
     flex-direction:column;
 """, filename='test.html')
 
 
 if __name__ == '__main__':
   unittest.main()