Bug 88878 [Preferences] File and Content Type pages should link to one another
There should be some mention of the relationship between content type and file association pages.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ContentTypesPreferencePage.java
/*
         * (non-Javadoc)
         * 
         * @see org.eclipse.jface.viewers.IContentProvider#dispose()
         */
        public void dispose() {
        }
        /*
         * (non-Javadoc)
         * 
         * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
         *      java.lang.Object, java.lang.Object)
         */
        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        }
        /*
         * (non-Javadoc)
         * 
         * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
         */
        public Object[] getElements(Object inputElement) {
            IContentType contentType = (IContentType) inputElement;
            String[] userextfileSpecs = contentType
                    .getFileSpecs(IContentType.FILE_EXTENSION_SPEC
                            | IContentType.IGNORE_PRE_DEFINED);
            String[] usernamefileSpecs = contentType
                    .getFileSpecs(IContentType.FILE_NAME_SPEC
                            | IContentType.IGNORE_PRE_DEFINED);
            String[] preextfileSpecs = contentType