Show a visual indicator for the progress of auto-click.

chrome/app/chromeos_strings.grdp

Index: chrome/app/chromeos_strings.grdp
diff --git a/chrome/app/chromeos_strings.grdp b/chrome/app/chromeos_strings.grdp
index 9e9c5372f34d633b65b7a9b9e525017cc07c262d..1da0fa77ec18937d8f87eeaa01ae379c556d0d31 100644
--- a/chrome/app/chromeos_strings.grdp
+++ b/chrome/app/chromeos_strings.grdp
@@ -2372,19 +2372,19 @@ Press any key to continue exploring.
     Delay before click:
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_AUTOCLICK_DELAY_EXTREMELY_SHORT" desc="Label for an extremely short autoclick delay option in the settings.">
-    extremely short
+    extremely short (600 ms)
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_AUTOCLICK_DELAY_VERY_SHORT" desc="Label for a very short autoclick delay option in the settings.">
-    very short
+    very short (800 ms)
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_AUTOCLICK_DELAY_SHORT" desc="Label for a short autoclick delay option in the settings.">
-    short
+    short (1000 ms)
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_AUTOCLICK_DELAY_LONG" desc="Label for a long autoclick delay option in the settings.">
-    long
+    long (2000 ms)
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_AUTOCLICK_DELAY_VERY_LONG" desc="Label for a very long autoclick delay option in the settings.">
-    very long
+    very long (4000 ms)
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ACCESSIBILITY_CARET_HIGHLIGHT_DESCRIPTION" desc="In the settings tab, the text next to the checkbox to highlight the caret (the text insertion point) to make it easier to see.">
     Highlight the text caret when it appears or moves