Fixing use of deprecated API in HtmlUnit

Author: barancev

java/client/src/org/openqa/selenium/htmlunit/HtmlUnitDriver.java

@@ -1395,7 +1395,7 @@ public void deleteCookieNamed(String name) {
  CookieManager cookieManager = getWebClient().getCookieManager();
 
  URL url = getRawUrl();
- Set<com.gargoylesoftware.htmlunit.util.Cookie> rawCookies = cookieManager.getCookies(url);
+ Set<com.gargoylesoftware.htmlunit.util.Cookie> rawCookies = getWebClient().getCookies(url);
  for (com.gargoylesoftware.htmlunit.util.Cookie cookie : rawCookies) {
  if (name.equals(cookie.getName())) {
  cookieManager.removeCookie(cookie);
@@ -1423,7 +1423,7 @@ public Set<Cookie> getCookies() {
  }
 
  return ImmutableSet.copyOf(Collections2.transform(
- getWebClient().getCookieManager().getCookies(url),
+ getWebClient().getCookies(url),
  htmlUnitCookieToSeleniumCookieTransformer));
  }