Fix incorrect saving of http auth username/password

Save http auth request username/password only when
'Remember passwords' settings is enabled.

Change-Id: I10a48b02aa1d62c30c6424fefa68a8717ffaf8f8
diff --git a/src/com/android/browser/PageDialogsHandler.java b/src/com/android/browser/PageDialogsHandler.java
index 67078b5..e027e80 100644
--- a/src/com/android/browser/PageDialogsHandler.java
+++ b/src/com/android/browser/PageDialogsHandler.java
@@ -123,7 +123,7 @@
                                             String username,
                                             String password) {
         WebView w = mController.getCurrentTopWebView();
-        if (w != null) {
+        if (w != null && BrowserSettings.getInstance().rememberPasswords()) {
             w.setHttpAuthUsernamePassword(host, realm, username, password);
         }
     }