Fetch incremental updates. Store new state in V4Store.

chrome/browser/safe_browsing/services_delegate_impl.cc

Index: chrome/browser/safe_browsing/services_delegate_impl.cc
diff --git a/chrome/browser/safe_browsing/services_delegate_impl.cc b/chrome/browser/safe_browsing/services_delegate_impl.cc
index 5eba56f7716539bb0d9f7b032affc34352cf31fe..cb72d0e9c2e21db59e7644e3f7512139943c3a27 100644
--- a/chrome/browser/safe_browsing/services_delegate_impl.cc
+++ b/chrome/browser/safe_browsing/services_delegate_impl.cc
@@ -17,12 +17,14 @@
 
 namespace safe_browsing {
 
+#ifdef NDEBUG
 namespace {
 const base::Feature kSafeBrowsingV4LocalDatabaseManagerEnabled {
     "SafeBrowsingV4LocalDatabaseManagerEnabled",
     base::FEATURE_DISABLED_BY_DEFAULT
 };
 }  // namespace
+#endif
 
 // static
 std::unique_ptr<ServicesDelegate> ServicesDelegate::Create(
@@ -184,8 +186,12 @@ V4LocalDatabaseManager* ServicesDelegateImpl::CreateV4LocalDatabaseManager() {
 }
 
 bool ServicesDelegateImpl::IsV4LocalDatabaseManagerEnabled() {
+#ifndef NDEBUG
+  return true;
+#else
   return base::FeatureList::IsEnabled(
       kSafeBrowsingV4LocalDatabaseManagerEnabled);
+#endif
 }
 
 }  // namespace safe_browsing