Add about:flags flag for the Suggestions NTP.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index e0641b50b1e6fd4d25855fa9ae49bbe2ab4e6b40..d6c220d3ac01f9299463cc3440bc87f8edda311c 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -4945,6 +4945,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ENABLE_VPN_DESCRIPTION" desc="Description for the flag to enable VPN support">
         Show Private networks in the Network menu to enable conencting to a VPN.
       </message>
+      <message name="IDS_FLAGS_NTP_SUGGESTIONS_PAGE_NAME" desc="Name of the 'Enable suggestions page' lab.">
+        NTP Suggestions page
+      </message>
+      <message name="IDS_FLAGS_NTP_SUGGESTIONS_PAGE_DESCRIPTION" desc="Description of the 'Enable suggestions page' lab.">
+        Add 'Suggestions' card to the new tab page, which suggests the pages to be opened.
+      </message>
       <message name="IDS_FLAGS_PRELOAD_INSTANT_SEARCH_NAME" desc="Title for the flag to preload Instant search">
         Preload Instant Search
       </message>