Bug 198909 page-break-after: avoid doesn't work in some special cases
page-break-after: avoid doesn't work in some special cases. Plese refer to attached report.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFImageLM.java
/***********************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Actuate Corporation - initial API and implementation
 ***********************************************************************/
package org.eclipse.birt.report.engine.layout.pdf;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.logging.Level;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.birt.report.engine.content.Dimension;
import org.eclipse.birt.report.engine.content.IContainerContent;
import org.eclipse.birt.report.engine.content.IContent;