Bug 49117 [Plan Item] Workbench needs hooks for new welcome support
M6 We need to provide an extension point and some interfaces to allow for a primary feature to declare a welcome page. This extension point will be tied the new IProduct being defined by the Core team and needs to have 3 states 1) Fill whole screen 2) Collapsed on the right when the user selects something and starts working 3) Disables when it is no longer of any use
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
actionBuilder = (WorkbenchActionBuilder) windowConfigurer.getData(ACTION_BUILDER);
		if (actionBuilder == null) {
			actionBuilder = new WorkbenchActionBuilder(window);
		}
		
		if ((flags & FILL_PROXY) != 0) {
			
			if ((flags & FILL_MENU_BAR) != 0) {
				actionBuilder.populateMenuBar(actionConfigurer);
			}
			if ((flags & FILL_COOL_BAR) != 0) {
				actionBuilder.populateCoolBar(actionConfigurer);
			}
		} else {
			
			
			windowConfigurer.setData(ACTION_BUILDER,actionBuilder);
			actionBuilder.makeAndPopulateActions(configurer, actionConfigurer);
		}
		
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.ui.application.WorkbenchAdvisor#getMainPreferencePageId
	 */
	public String getMainPreferencePageId() {
		
		return WORKBENCH_PREFERENCE_CATEGORY_ID;
	}
}