Count number of origins with data affected by clearing "cookies and site data".

components/browsing_data_strings.grdp

Index: components/browsing_data_strings.grdp
diff --git a/components/browsing_data_strings.grdp b/components/browsing_data_strings.grdp
index ae7085509a020021c70772e5013d65cf48bfd9fa..9c46ca4761d91b982e5f6830d0f9a998de63f5c2 100644
--- a/components/browsing_data_strings.grdp
+++ b/components/browsing_data_strings.grdp
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <grit-part>
-  
   <!-- Clear Browsing Data counters-->
   <message name="IDS_CLEAR_BROWSING_DATA_CALCULATING" desc="A text that is shown while the data volume is being counted.">
     Calculating...
@@ -70,7 +69,11 @@
     <ph name="TYPE_1">$1<ex>2 credit cards</ex></ph>, <ph name="TYPE_2">$2<ex>1 address</ex></ph>, <ph name="TYPE_3">$3<ex>5 others</ex></ph>
   </message>
   <message name="IDS_DEL_COOKIES_COUNTER" desc="A static message shown in the Clear Browsing Data dialog explaining to the user that deleting cookies and site data will result in the user being signed out of most websites.">
-    This will sign you out of most websites.
+    {COUNT, plural,
+      =0 {No cookies}
+      =1 {1 site uses cookies. }
+      other {# sites use cookies. }}
+    Cookies keep you signed in to your favorite sites.
   </message>
   <message name="IDS_DEL_DOWNLOADS_COUNTER" desc="A counter showing how many items of downloads history the user has.">
     {COUNT, plural,
@@ -96,4 +99,4 @@
   <message name="IDS_DEL_MEDIA_LICENSES_COUNTER_SITE_COMMENT" desc="A message shown in the Clear Browsing Data dialog explaining to the user that clearing media licenses will result in the user being unable to play some premium content from at least one specific web site">
      You may lose access to premium content from <ph name="SITE">$1<ex>youtube.com</ex></ph> and some other sites.
   </message>
-</grit-part>
+</grit-part>