/** * Clear the specified types of browsing data asynchronously. |listener| is an object to be * notified when clearing completes. It can be null, but many operations (e.g. navigation) are * ill-advised while browsing data is being cleared. */ public void clearBrowsingData( OnClearBrowsingDataListener listener, boolean history, boolean cache, boolean cookiesAndSiteData, boolean passwords, boolean formData) { assert mClearBrowsingDataListener == null; mClearBrowsingDataListener = listener; nativeClearBrowsingData(history, cache, cookiesAndSiteData, passwords, formData); }