Refactor preference syncing.

chrome/browser/web_resource/promo_resource_service.cc

Index: chrome/browser/web_resource/promo_resource_service.cc
diff --git a/chrome/browser/web_resource/promo_resource_service.cc b/chrome/browser/web_resource/promo_resource_service.cc
index d9f526fca59504b358f88ab9c16e8ef3cfd863ea..c91d835899bcf64d0b5dc966276544ae329e1d94 100644
--- a/chrome/browser/web_resource/promo_resource_service.cc
+++ b/chrome/browser/web_resource/promo_resource_service.cc
@@ -56,22 +56,44 @@ const char* PromoResourceService::kDefaultPromoResourceServer =
 
 // static
 void PromoResourceService::RegisterPrefs(PrefService* local_state) {
-  local_state->RegisterIntegerPref(prefs::kNTPPromoVersion, 0);
-  local_state->RegisterStringPref(prefs::kNTPPromoLocale, std::string());
+  local_state->RegisterIntegerPref(prefs::kNTPPromoVersion,
+                                   0,
+                                   false /* don't sync pref */);
+  local_state->RegisterStringPref(prefs::kNTPPromoLocale,
+                                  std::string(),
+                                  false /* don't sync pref */);
 }
 
 // static
 void PromoResourceService::RegisterUserPrefs(PrefService* prefs) {
-  prefs->RegisterDoublePref(prefs::kNTPCustomLogoStart, 0);
-  prefs->RegisterDoublePref(prefs::kNTPCustomLogoEnd, 0);
-  prefs->RegisterDoublePref(prefs::kNTPPromoStart, 0);
-  prefs->RegisterDoublePref(prefs::kNTPPromoEnd, 0);
-  prefs->RegisterStringPref(prefs::kNTPPromoLine, std::string());
-  prefs->RegisterBooleanPref(prefs::kNTPPromoClosed, false);
-  prefs->RegisterIntegerPref(prefs::kNTPPromoGroup, -1);
-  prefs->RegisterIntegerPref(prefs::kNTPPromoBuild,
-       CANARY_BUILD | DEV_BUILD | BETA_BUILD | STABLE_BUILD);
-  prefs->RegisterIntegerPref(prefs::kNTPPromoGroupTimeSlice, 0);
+  prefs->RegisterDoublePref(prefs::kNTPCustomLogoStart,
+                            0,
+                            false /* don't sync pref */);
+  prefs->RegisterDoublePref(prefs::kNTPCustomLogoEnd,
+                            0,
+                            false /* don't sync pref */);
+  prefs->RegisterDoublePref(prefs::kNTPPromoStart,
+                            0,
+                            false /* don't sync pref */);
+  prefs->RegisterDoublePref(prefs::kNTPPromoEnd,
+                            0,
+                            false /* don't sync pref */);
+  prefs->RegisterStringPref(prefs::kNTPPromoLine,
+                            std::string(),
+                            false /* don't sync pref */);
+  prefs->RegisterBooleanPref(prefs::kNTPPromoClosed,
+                             false,
+                             false /* don't sync pref */);
+  prefs->RegisterIntegerPref(prefs::kNTPPromoGroup,
+                             -1,
+                             false /* don't sync pref */);
+  prefs->RegisterIntegerPref(
+      prefs::kNTPPromoBuild,
+      CANARY_BUILD | DEV_BUILD | BETA_BUILD | STABLE_BUILD,
+      false /* don't sync pref */);
+  prefs->RegisterIntegerPref(prefs::kNTPPromoGroupTimeSlice,
+                             0,
+                             false /* don't sync pref */);
 }
 
 // static