Add multiple styles handling to Component

Fixes #9357

server/src/main/java/com/vaadin/ui/Component.java

@@ -172,6 +172,21 @@ public interface Component extends ClientConnector, Sizeable, Serializable {
      */
     public void addStyleName(String style);
 
+
+    /**
+     * Adds one or more style names to this component by using one or multiple parameters.
+     * @param styles
+     *            the style name or style names to be added to the component
+     * @see #addStyleName(String)
+     * @see #setStyleName(String)
+     * @see #removeStyleName(String)
+     */
+    public default void addStyleNames(String ... styles) {
+        for (String style : styles) {
+            addStyleName(style);
+        }
+    }
+
     /**
      * Removes one or more style names from component. Multiple styles can be
      * specified as a space-separated list of style names.
@@ -191,6 +206,21 @@ public interface Component extends ClientConnector, Sizeable, Serializable {
      */
     public void removeStyleName(String style);
 
+    /**
+     * Removes one or more style names from component. Multiple styles can be
+     * specified by using multiple parameters.
+     * @param styles
+     *            the style name or style names to be removed
+     * @see #removeStyleName(String)
+     * @see #setStyleName(String)
+     * @see #addStyleName(String)
+     */
+    public default void removeStyleNames(String ... styles) {
+        for (String style : styles) {
+            removeStyleName(style);
+        }
+    }
+
     /**
      * Gets the primary style name of the component. See
      * {@link Component#setPrimaryStyleName(String)} for a better description of