MD Settings: Fix the Network Prediction toggle box.

chrome/test/data/webui/settings/settings_toggle_button_tests.js

Index: chrome/test/data/webui/settings/settings_toggle_button_tests.js
diff --git a/chrome/test/data/webui/settings/settings_toggle_button_tests.js b/chrome/test/data/webui/settings/settings_toggle_button_tests.js
index 212cf2d8b652ce82a8a278e59b26dfa5de485ffb..212a0372d69ccd10df60d011e2dc934ebd6cb567 100644
--- a/chrome/test/data/webui/settings/settings_toggle_button_tests.js
+++ b/chrome/test/data/webui/settings/settings_toggle_button_tests.js
@@ -94,6 +94,55 @@ cr.define('settings_toggle_button', function() {
         assertTrue(testElement.checked);
         assertEquals(1, prefNum.value);
       });
+
+      test('numerical pref with custom values', function() {
+        var prefNum = {
+          key: 'test',
+          type: chrome.settingsPrivate.PrefType.NUMBER,
+          value: 5
+        };
+
+        testElement.numericUncheckedValue = 5;
+
+        testElement.set('pref', prefNum);
+        assertFalse(testElement.checked);
+
+        testElement.setAttribute('checked', '');
+        assertTrue(testElement.checked);
+        assertEquals(1, prefNum.value);
+
+        testElement.removeAttribute('checked');
+        assertFalse(testElement.checked);
+        assertEquals(5, prefNum.value);
+      });
+
+      test('numerical pref with unknown inital value', function() {
+        prefNum = {
+          key: 'test',
+          type: chrome.settingsPrivate.PrefType.NUMBER,
+          value: 3
+        };
+
+        testElement.numericUncheckedValue = 5;
+
+        testElement.set('pref', prefNum);
+
+        // Unknown value should still count as checked.
+        assertTrue(testElement.checked);
+
+        // The control should not clobber an existing unknown value.
+        assertEquals(3, prefNum.value);
+
+        // Unchecking should still send the unchecked value to prefs.
+        testElement.removeAttribute('checked');
+        assertFalse(testElement.checked);
+        assertEquals(5, prefNum.value);
+
+        // Checking should still send the normal checked value to prefs.
+        testElement.setAttribute('checked', '');
+        assertTrue(testElement.checked);
+        assertEquals(1, prefNum.value);
+      });
     });
   }