Bug 214649 [Markers] Allow markerAttributeGroupings and markerGroups to be specified within contentGenerators
With everything at the top level it is hard to see the relation to a contentGenerator and the groups and attribute groupings. These should be sub elements a la menus.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/CachedMarkerBuilder.java
postBuild();
					scheduleMarkerUpdate();
					return;
				}
				
				if (progressService == null)
					markerProcessJob.schedule(TIME_OUT);
				else
					progressService.schedule(markerProcessJob, TIME_OUT);
			}
		};
	}
	/**
	 * Post build has happened. Let it all run.
	 */
	protected void postBuild() {
		preBuildTime = -1;
	}
	/**
	 * We are in a pre build state. Do not update until the post build happens.
	 */
	protected void preBuild() {
		preBuildTime = System.currentTimeMillis();
	}
	/**
	 * Get the fields that this content generator is displaying.
	 * 
	 * @return {@link MarkerField}[]
	 */
	MarkerField[] getVisibleFields() {