Add string for cache and cookies to important sites

chrome/app/settings_strings.grdp

Index: chrome/app/settings_strings.grdp
diff --git a/chrome/app/settings_strings.grdp b/chrome/app/settings_strings.grdp
index e237d908711a580f800f46591cff850f454d31af..4cfdf68985ab82ad399ebf6b4e945d1c1d8056fc 100644
--- a/chrome/app/settings_strings.grdp
+++ b/chrome/app/settings_strings.grdp
@@ -870,9 +870,12 @@
   <message name="IDS_SETTINGS_CLEAR_DATA_CLEARS_SYNCED_DATA" desc="Information that data which is synced across user's devices will be deleted from all those devices.">
     This clears synced data from all devices.
   </message>
-  <message name="IDS_SETTINGS_IMPORTANT_SITES_SUBTITLE" desc="Subtitle for the important sites dialog.">
+  <message name="IDS_SETTINGS_IMPORTANT_SITES_SUBTITLE_COOKIES" desc="Subtitle for the important sites dialog.">
     This will clear cookies and site data for all sites, including
   </message>
+  <message name="IDS_SETTINGS_IMPORTANT_SITES_SUBTITLE_COOKIES_AND_CACHE" desc="Subtitle for the important sites dialog.">
+    This will clear cookies and cache for all sites, including
+  </message>
   <message name="IDS_SETTINGS_IMPORTANT_SITES_CONFIRM" desc="Text for confirmation button of the important sites dialog.">
     Confirm
   </message>