Add utility method to help finding favicons

src/acr/browser/lightning/Utils.java

@@ -97,6 +97,11 @@ public final class Utils {
 			return domain.startsWith("www.") ? domain.substring(4) : domain;
 	}
 	
+	public static String getProtocol(String url) {
+		int index = url.indexOf('/');
+		return url.substring(0, index + 2);
+	}
+
 	public static List<HistoryItem> getOldBookmarks(Context context) {
 		List<HistoryItem> bookmarks = new ArrayList<HistoryItem>();
 		File bookUrl = new File(context.getFilesDir(), "bookurl");