Invite the user to set up AutoFill

If the user has not set up an AutoFill profile but has the
feature enabled and they start to fill out a form that we
have determined as "autofillable" then offer to take them
to the profile editor to set up their profile.

Change-Id: Ia44c7036ef616d4ea826e541471dd916262488f2
diff --git a/src/com/android/browser/BrowserSettings.java b/src/com/android/browser/BrowserSettings.java
index 069f886..ab2ddb2 100644
--- a/src/com/android/browser/BrowserSettings.java
+++ b/src/com/android/browser/BrowserSettings.java
@@ -567,6 +567,13 @@
         ed.apply();
     }
 
+    /* package */ void disableAutoFill(Context ctx) {
+        autoFillEnabled = false;
+        Editor ed = PreferenceManager.getDefaultSharedPreferences(ctx).edit();
+        ed.putBoolean(PREF_AUTOFILL_ENABLED, false);
+        ed.apply();
+    }
+
     /**
      * Add a WebSettings object to the list of observers that will be updated
      * when update() is called.