Bug 34159 [Tasks] First three columns of Task List too wide w/native table
The type, completion, and priority columns of the Task list using the native table widget on MacOS X are much wider than are necessary for displaying the icons in those columns and appear not to be resizable.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/tasklist/TaskList.java
purgeCompletedAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE_HOVER));
		purgeCompletedAction.setEnabled(true);
		
		selectAllAction = new SelectAllTasksAction(this, "selectAll"); 
		selectAllAction.setText(TaskListMessages.getString("SelectAll.text")); 
		selectAllAction.setToolTipText(TaskListMessages.getString("SelectAll.tooltip")); 
		
		resolveMarkerAction = new ResolveMarkerAction(this, "resolve"); 
		resolveMarkerAction.setText(TaskListMessages.getString("Resolve.text")); 
		resolveMarkerAction.setToolTipText(TaskListMessages.getString("Resolve.tooltip")); 
		resolveMarkerAction.setEnabled(false);
			
		sortByCategoryAction = new SortByAction(TaskSorter.TYPE);
		sortByCategoryAction.setText(TaskListMessages.getString("SortByCategory.text")); 
		sortByCategoryAction.setToolTipText(TaskListMessages.getString("SortByCategory.tooltip")); 
		sortByCompletedAction = new SortByAction(TaskSorter.COMPLETION);
		sortByCompletedAction.setText(TaskListMessages.getString("SortByCompleted.text")); 
		sortByCompletedAction.setToolTipText(TaskListMessages.getString("SortByCompleted.tooltip")); 
		sortByPriorityAction = new SortByAction(TaskSorter.PRIORITY);
		sortByPriorityAction.setText(TaskListMessages.getString("SortByPriority.text")); 
		sortByPriorityAction.setToolTipText(TaskListMessages.getString("SortByPriority.tooltip")); 
		sortByDescriptionAction = new SortByAction(TaskSorter.DESCRIPTION);
		sortByDescriptionAction.setText(TaskListMessages.getString("SortByDescription.text")); 
		sortByDescriptionAction.setToolTipText(TaskListMessages.getString("SortByDescription.tooltip")); 
		sortByResourceAction = new SortByAction(TaskSorter.RESOURCE);
		sortByResourceAction.setText(TaskListMessages.getString("SortByResource.text")); 
		sortByResourceAction.setToolTipText(TaskListMessages.getString("SortByResource.tooltip")); 
		sortByContainerAction = new SortByAction(TaskSorter.FOLDER);
		sortByContainerAction.setText(TaskListMessages.getString("SortByContainer.text")); 
		sortByContainerAction.setToolTipText(TaskListMessages.getString("SortByContainer.tooltip"));