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..425e1106475190c83595590619823620251e73ff 100644
--- a/chrome/browser/search_engines/template_url_prepopulate_data.cc
+++ b/chrome/browser/search_engines/template_url_prepopulate_data.cc
@@ -3281,7 +3281,7 @@ 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) :