Componentize script to generate UI string overrides mapping.

chrome/browser/metrics/metrics_services_manager.cc

Index: chrome/browser/metrics/metrics_services_manager.cc
diff --git a/chrome/browser/metrics/metrics_services_manager.cc b/chrome/browser/metrics/metrics_services_manager.cc
index a9816206036b148a08dcd86f4a39b7813cd51b62..6e71aa172019752bf66f1e3cdaabc5b293a67efc 100644
--- a/chrome/browser/metrics/metrics_services_manager.cc
+++ b/chrome/browser/metrics/metrics_services_manager.cc
@@ -14,7 +14,7 @@
 #include "chrome/browser/metrics/chrome_metrics_service_client.h"
 #include "chrome/browser/metrics/metrics_reporting_state.h"
 #include "chrome/browser/metrics/variations/chrome_variations_service_client.h"
-#include "chrome/browser/metrics/variations/generated_resources_map.h"
+#include "chrome/browser/metrics/variations/ui_string_overrider_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser_otr_state.h"
@@ -69,9 +69,7 @@ variations::VariationsService* MetricsServicesManager::GetVariationsService() {
     variations_service_ = variations::VariationsService::Create(
         make_scoped_ptr(new ChromeVariationsServiceClient()), local_state_,
         GetMetricsStateManager(), switches::kDisableBackgroundNetworking,
-        variations::UIStringOverrider(chrome_variations::kResourceHashes,
-                                      chrome_variations::kResourceIndices,
-                                      chrome_variations::kNumResources));
+        chrome_variations::CreateUIStringOverrider());
   }
   return variations_service_.get();
 }