Fix grammar (does->do) in border-image-sans-border-style deprecation

third_party/WebKit/LayoutTests/inspector/elements/styles-2/inject-stylesheet-expected.txt

-CONSOLE WARNING: Elements using the 'border-image' CSS property with no 'border-style' set should have no border, but currently does. Setting 'border-style' will be required in M51, around June 2016. See https://www.chromestatus.com/features/5542503914668032 for more details.
+CONSOLE WARNING: Elements using the 'border-image' CSS property with no 'border-style' set should have no border, but currently do. Setting 'border-style' will be required in M51, around June 2016. See https://www.chromestatus.com/features/5542503914668032 for more details.
 CONSOLE MESSAGE: line 10: iframe loaded
 Tests that injected user stylesheets are reflected in the Styles pane.
 
 
 Main frame style:
 background-attachment: scroll;
     initial - #main inject-stylesheet.html:5 -> inject-stylesheet.html:5:3
 background-clip: border-box;
     initial - #main inject-stylesheet.html:5 -> inject-stylesheet.html:5:3
 background-color: rgb(0, 0, 255);
@@ skipping 99 matching lines @@
 [expanded] 
 body { (user agent stylesheet)
     display: block;
     margin: 8px;
         margin-top: 8px;
         margin-right: 8px;
         margin-bottom: 8px;
         margin-left: 8px;