Merge "Revise javadoc of EXTRA_FROM_TEXT_CLASSIFIER"

    TextClassifier NO_OP = new TextClassifier() {};

    /**

     * Used as a boolean value to indicate the intent is generated by TextClassifier.

     * Extra that is included on activity intents coming from a TextClassifier when

     * it suggests actions to its caller.

     * <p>

     * All {@link TextClassifier} implementations should set this boolean extra to be true in their

     * All {@link TextClassifier} implementations should make sure this extra exists in their

     * generated intents.

     */

    String EXTRA_FROM_TEXT_CLASSIFIER = "android.view.textclassifier.extra.FROM_TEXT_CLASSIFIER";