Use a better highlight images for extension toolstrip

chrome/browser/resources/extensions_toolstrip.css

Index: chrome/browser/resources/extensions_toolstrip.css
===================================================================
--- chrome/browser/resources/extensions_toolstrip.css	(revision 26227)
+++ chrome/browser/resources/extensions_toolstrip.css	(working copy)
@@ -86,10 +86,10 @@
  */
 div.toolstrip-button:hover {
   border-width:6px;
-  -webkit-border-image:url(data:image/png;base64,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) 6 round round;
+  -webkit-border-image:url(data:image/png;base64,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) 6 round round;
 }
 
 div.toolstrip-button:active {
   border-width:6px;
-  -webkit-border-image:url(data:image/png;base64,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) 6 round round;
+  -webkit-border-image:url(data:image/png;base64,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) 6 round round;
 }