ref(toolbox): getter for the recording/streaming disabled tooltip

react/features/base/toolbox/components/AbstractButton.js

         return buttonStyles;
     }
 
+    /**
+     * Get the tooltip to display when hovering over the button.
+     *
+     * @private
+     * @returns {string}
+     */
+    _getTooltip() {
+        return this.tooltip || '';
+    }
+
     /**
      * Helper function to be implemented by subclasses, which must return a
      * boolean value indicating if this button is disabled or not.
             iconName: this._getIconName(),
             label: this._getLabel(),
             styles: this._getStyles(),
-            tooltip: this.tooltip
+            tooltip: this._getTooltip()
         };
 
         return (

react/features/recording/components/LiveStream/web/LiveStreamButton.js

     iconName = 'icon-public';
     toggledIconName = 'icon-public';
 
-    /**
-     * Constructor of the component.
-     *
-     * @inheritdoc
-     */
-    constructor(props: Props) {
-        super(props);
-
-        this.tooltip = props._liveStreamDisabledTooltipKey;
-    }
-
-    /**
-     * Implements {@code Component}'s componentWillReceiveProps.
-     *
-     * @inheritdoc
-     */
-    componentWillReceiveProps(newProps: Props) {
-        this.tooltip = newProps._liveStreamDisabledTooltipKey;
-    }
-
     /**
      * Helper function to be implemented by subclasses, which returns
      * a React Element to display (a beta tag) at the end of the button.
         );
     }
 
+    /**
+     * Returns the tooltip that should be displayed when the button is disabled.
+     *
+     * @private
+     * @returns {string}
+     */
+    _getTooltip() {
+        return this.props._liveStreamDisabledTooltipKey || '';
+    }
+
     /**
      * Helper function to be implemented by subclasses, which must return a
      * boolean value indicating if this button is disabled or not.

react/features/recording/components/Recording/web/RecordButton.js

     toggledIconName = 'icon-camera-take-picture';
 
     /**
-     * Constructor of the component.
+     * Returns the tooltip that should be displayed when the button is disabled.
      *
-     * @inheritdoc
+     * @private
+     * @returns {string}
      */
-    constructor(props: Props) {
-        super(props);
-
-        this.tooltip = props._fileRecordingsDisabledTooltipKey;
-    }
-
-    /**
-     * Implements {@code Component}'s componentWillReceiveProps.
-     *
-     * @inheritdoc
-     */
-    componentWillReceiveProps(newProps: Props) {
-        this.tooltip = newProps._fileRecordingsDisabledTooltipKey;
+    _getTooltip() {
+        return this.tooltip || '';
     }
 
     /**