modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java

@@ -23,10 +23,11 @@
  * questions.
  */
 
 package com.sun.javafx.css;
 
+import javafx.application.Application;
 import javafx.css.Styleable;
 import java.io.FileNotFoundException;
 import java.io.FilePermission;
 import java.io.IOException;
 import java.io.InputStream;

@@ -1270,10 +1271,45 @@
         CssError.setCurrentScene(null);
 
     }
 
     /**
+     * Removes the specified stylesheet from the application default user agent
+     * stylesheet list.
+     * @param url  The file URL, either relative or absolute, as a String.
+     */
+    public void removeUserAgentStylesheet(String url) {
+        if (url == null ) {
+            throw new IllegalArgumentException("null arg url");
+        }
+ 
+        final String fname = url.trim();
+        if (fname.isEmpty()) {
+            return;
+        }
+ 
+        // if we already have this stylesheet, remove it!
+        boolean removed = false;
+        for (int n = platformUserAgentStylesheetContainers.size() - 1; n >= 0; n--) {
+            // don't remove the platform default user agent stylesheet
+            if (fname.equals(Application.getUserAgentStylesheet())) {
+                continue;
+            }
+ 
+            StylesheetContainer container = platformUserAgentStylesheetContainers.get(n);
+            if (fname.equals(container.fname)) {
+                platformUserAgentStylesheetContainers.remove(n);
+                removed = true;
+            }
+        }
+ 
+        if (removed) {
+            userAgentStylesheetsChanged();
+        }
+    }
+
+    /**
      * Set the user agent stylesheet. This is the base default stylesheet for
      * the platform
      */
     public void setDefaultUserAgentStylesheet(Stylesheet ua_stylesheet) {