Moving TabFolderLayout into SWT. Incorporated review comments.

Fixes #1317

Author: deepika-u

bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/TabFolderLayout.java

@@ -19,16 +19,15 @@
 import org.eclipse.swt.widgets.*;
 
 /**
- * This layout controls the position and size
- * of the children of a tab folder.
+ * This layout controls the position and size of the children of a tab folder.
+ * In addition this layout can be used for any component that wants
+ * TabFolder-Like behaviour (e.g. only showing all component at the full size
+ * of the composite stacked onto each other)
  *
- * @since 3.127
+ * @since 3.128
  */
 class TabFolderLayout extends Layout {
 
-	/*
-	 * @see org.eclipse.swt.widgets.Layout#computeSize(org.eclipse.swt.widgets.Composite, int, int, boolean)
-	 */
 	@Override
 	protected Point computeSize (Composite composite, int wHint, int hHint, boolean flushCache) {
 		if (wHint != SWT.DEFAULT && hHint != SWT.DEFAULT)
@@ -53,9 +52,6 @@ protected Point computeSize (Composite composite, int wHint, int hHint, boolean
 
 	}
 
-	/*
-	 * @see org.eclipse.swt.widgets.Layout#layout(org.eclipse.swt.widgets.Composite, boolean)
-	 */
 	@Override
 	protected void layout (Composite composite, boolean flushCache) {
 		Rectangle rect= composite.getClientArea();