Update WebSettings.PREVIOUS_VERSION

Now that we have released ICS MR1.1, update the PREVIOUS_VERSION
to 4.0.4.

Change-Id: I3c4d6abfa679f20776d2676c57af4c0347e41c7b

Author: Bart Sears

core/java/android/webkit/WebSettingsClassic.java

@@ -33,7 +33,7 @@
  */
 public class WebSettingsClassic extends WebSettings {
     // TODO: Keep this up to date
-    private static final String PREVIOUS_VERSION = "4.0.3";
+    private static final String PREVIOUS_VERSION = "4.0.4";
 
     // WebView associated with this WebSettings.
     private WebViewClassic mWebView;