Add/improve ChromeVox feedback for switches

chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd

Index: chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd
diff --git a/chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd b/chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd
index dd2635d82e86e26ebfc4dd663c968f4cf6f21088..56bb3f64455efdb3a40f8a52dca7ba410a50fb86 100644
--- a/chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd
+++ b/chrome/browser/resources/chromeos/chromevox/strings/chromevox_strings.grd
@@ -564,6 +564,12 @@
       <message desc="The unchecked state for a checkbox." name="IDS_CHROMEVOX_CHECKBOX_UNCHECKED_STATE">
         not checked
       </message>
+      <message desc="Describes a switch named 'name' in the on/checked state." name="IDS_CHROMEVOX_DESCRIBE_SWITCH_ON">
+        <ph name="name">$1</ph>, switch on
+      </message>
+      <message desc="Describes a switch named 'name' in the off/unchecked state." name="IDS_CHROMEVOX_DESCRIBE_SWITCH_OFF">
+        <ph name="name">$1</ph>, switch off
+      </message>
       <message desc="Describes a HTML radio button named 'name' in the selected state." name="IDS_CHROMEVOX_DESCRIBE_RADIO_SELECTED">
         <ph name="name">$1</ph>, radio button selected
       </message>