Bug 315050 [Automation][Regression]Image size is different from golden file when preview as xls
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/layout/ExcelLayoutEngine.java
.getRowHeight( rowIndex - 1 ) );
			data.toArray( rowdata );
			return new RowData( rowdata, rowHeight );
		}
		public void remove( )
		{
			throw new UnsupportedOperationException( );
		}
	}
	public void cacheBookmarks( int sheetIndex )
	{
		List<BookmarkDef> currentSheetBookmarks = cache.getBookmarks( );
		for ( BookmarkDef book : currentSheetBookmarks )
		{
			book.setSheetIndex( sheetIndex );
			bookmarkList.put( book.getName( ), book );
		}
	}
	public HashMap<String, BookmarkDef> getAllBookmarks( )
	{
		return this.bookmarkList;
	}
	/**
	 * @param bookmarkName
	 * @return generatedBookmarkName
	 */
	public String getGenerateBookmark( String bookmarkName )
	{
		String generatedName = cachedBookmarks.get( bookmarkName );
		return generatedName != null ? generatedName : AUTO_GENERATED_BOOKMARK