Merge "WebView: update loadUrl documentation"

    }

   /**

     * Loads the given URL with the specified additional HTTP headers.

     * Loads the given URL with additional HTTP headers, specified as a map from

     * name to value. Note that if this map contains any of the headers that are

     * set by default by this WebView, such as those controlling caching, accept

     * types or the User-Agent, their values may be overridden by this WebView's

     * defaults.

     * <p>

     * Some older WebView implementations require {@code additionalHttpHeaders}

     * to be mutable.

     * <p>

     * Also see compatibility note on {@link #evaluateJavascript}.

     *

     * @param url the URL of the resource to load

     * @param additionalHttpHeaders the additional headers to be used in the

     *            HTTP request for this URL, specified as a map from name to

     *            value. Note that if this map contains any of the headers

     *            that are set by default by this WebView, such as those

     *            controlling caching, accept types or the User-Agent, their

     *            values may be overridden by this WebView's defaults.

     * @param additionalHttpHeaders map with additional headers

     */

    public void loadUrl(@NonNull String url, @NonNull Map<String, String> additionalHttpHeaders) {

        checkThread();