`iframe` element

Pass Criteria

#1: Element is supported
#2: Correct HTML and Core Accessibility API mappings
#3: Correct Accessible Name & Description Calculation

Reference

Test if-001: `iframe` element no `title` attribute

Test if-002: `iframe` element with `title` attribute

Test if-003: `iframe` element with no `title` attribute and `title` element in `iframe` document

Test if-004: `iframe` element with `role=presentation` and no `title` attribute

Test if-005: `iframe` element with `role=presentation` and `title` attribute

Test if-006: `iframe` element with broken source, no `title` attribute