Bug 221521 [Markers] New markers API needs to be pared down
We have too much API in some of the new classes and they can be moved to internals
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerColumnLabelProvider.java
private ResourceManager imageManager;
	/**
	 * Create a MarkerViewLabelProvider on a field.
	 * 
	 * @param field
	 */
	MarkerColumnLabelProvider(MarkerField field) {
		FieldDecorationRegistry.getDefault();
		this.field = field;
		imageManager = new LocalResourceManager(JFaceResources.getResources());
		field.setImageManager(imageManager);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.BaseLabelProvider#dispose()
	 */
	public void dispose() {
		super.dispose();
		imageManager.dispose();
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ColumnLabelProvider#update(org.eclipse.jface.viewers.ViewerCell)
	 */
	public void update(ViewerCell cell) {
		field.update(cell);
	}
}