Bring back the ariaOwneeID prop. (#1883)

Summary:
**Summary**

Reverts 7f0cab2 to bring back the `ariaOwneeID` prop. The ARIA property `aria-owns` is required for the combobox ARIA widget, in both ARIA 1.0 and 1.1. Some plugins, for example the Mentions and Emoji plugins, still pass an `ariaOwneeID` prop which at the moment doesn't do anything. Also, without `aria-owns`, some browser / screen reader combinations don't read out the suggestions at all. For more details please refer to the related issue #1736.

Fixes #1736.
Pull Request resolved: #1883

Reviewed By: vdurmont

Differential Revision: D10371390

Pulled By: vdurmont

fbshipit-source-id: 140282124128437e0d8cc9b08490420c3dc81dc1

src/component/base/DraftEditor.react.js

@@ -377,6 +377,7 @@ class DraftEditor extends React.Component<DraftEditorProps, State> {
             aria-label={this.props.ariaLabel}
             aria-labelledby={this.props.ariaLabelledBy}
             aria-multiline={this.props.ariaMultiline}
+            aria-owns={readOnly ? null : this.props.ariaOwneeID}
             autoCapitalize={this.props.autoCapitalize}
             autoComplete={this.props.autoComplete}
             autoCorrect={this.props.autoCorrect}

src/component/base/DraftEditorProps.js

@@ -100,6 +100,7 @@ export type DraftEditorProps = {
   ariaLabel?: string,
   ariaLabelledBy?: string,
   ariaMultiline?: boolean,
+  ariaOwneeID?: string,
 
   webDriverTestID?: string,