Bug 130495 Get rid of SessionHandleAdapter
Now, we use SessionHandleAdapter to keep current active report deisng. That's a bad practive for editor swith and rebuild will cuase lots of problmes. Need find way to replace it.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/IReportProvider.java
IProgressMonitor monitor );
	/**
	 * Get document provider for report.
	 * @param element input element.
	 * @return
	 */
	IDocumentProvider getReportDocumentProvider( Object element );
	
	/**
	 * Save as path provider utility methods.
	 * @param element
	 * @return
	 */
	IPath getSaveAsPath( Object element );
	
	/**
	 * Create a new report editor input.
	 * @param path
	 * @return
	 */
	IEditorInput createNewEditorInput( IPath path );
	
	/**
	 * Get editor input path.
	 * @param input
	 * @return
	 */
	IPath getInputPath(IEditorInput input);
}