A working implementation of AQS (Assisted Query Stats).

chrome/browser/search_engines/template_url_prepopulate_data.cc

Index: chrome/browser/search_engines/template_url_prepopulate_data.cc
diff --git a/chrome/browser/search_engines/template_url_prepopulate_data.cc b/chrome/browser/search_engines/template_url_prepopulate_data.cc
index 6d2dbba25a8dd43b6edc3febc3769a59acaa3d0f..832fcd637fd6500a0520d59927ea7284cd04d26a 100644
--- a/chrome/browser/search_engines/template_url_prepopulate_data.cc
+++ b/chrome/browser/search_engines/template_url_prepopulate_data.cc
@@ -1091,6 +1091,7 @@ const PrepopulatedEngine google = {
   "http://www.google.com/favicon.ico",
   "{google:baseURL}search?q={searchTerms}&{google:RLZ}"
       "{google:acceptedSuggestion}{google:originalQueryForSuggestion}"
+      "{google:assistedQueryStats}"

[Peter Kasting, 2012/06/16 03:14:17]

Nit: I'd probably wrap after the "search field trial" block if it fits

[Bart N, 2012/06/16 23:38:10]

Done.

       "{google:searchFieldtrialParameter}sourceid=chrome&ie={inputEncoding}",
   "UTF-8",
   "{google:baseSuggestURL}search?{google:searchFieldtrialParameter}"
@@ -3281,7 +3282,7 @@ void RegisterUserPrefs(PrefService* prefs) {
 int GetDataVersion(PrefService* prefs) {
   // Increment this if you change the above data in ways that mean users with
   // existing data should get a new version.
-  const int kCurrentDataVersion = 39;
+  const int kCurrentDataVersion = 40;
   // Allow tests to override the local version.
   return (prefs && prefs->HasPrefPath(prefs::kSearchProviderOverridesVersion)) ?
       prefs->GetInteger(prefs::kSearchProviderOverridesVersion) :
@@ -3415,8 +3416,8 @@ SearchEngineType GetEngineType(const std::string& url) {
   TemplateURLData data;
   data.SetURL(url);
   TemplateURL turl(NULL, data);
-  GURL as_gurl(turl.url_ref().ReplaceSearchTerms(ASCIIToUTF16("x"),
-      TemplateURLRef::NO_SUGGESTIONS_AVAILABLE, string16()));
+  GURL as_gurl(turl.url_ref().ReplaceSearchTerms(
+      SearchTermsArgs(ASCIIToUTF16("x"))));
   if (!as_gurl.is_valid())
     return SEARCH_ENGINE_OTHER;