Move VariationsRegistrySyncerWin to ChromeVariationsServiceClient

chrome/browser/metrics/variations/chrome_variations_service_client.h

Index: chrome/browser/metrics/variations/chrome_variations_service_client.h
diff --git a/chrome/browser/metrics/variations/chrome_variations_service_client.h b/chrome/browser/metrics/variations/chrome_variations_service_client.h
index 5326fd1ef09ca1490b57e7bb697ff3289d5dc017..52e2caaa7ff217806b07c97572c4d2e85da21e14 100644
--- a/chrome/browser/metrics/variations/chrome_variations_service_client.h
+++ b/chrome/browser/metrics/variations/chrome_variations_service_client.h
@@ -8,6 +8,10 @@
 #include "base/basictypes.h"
 #include "components/variations/variations_service_client.h"
 
+#if defined(OS_WIN)
+#include "chrome/browser/metrics/variations/variations_registry_syncer_win.h"
+#endif
+
 // ChromeVariationsServiceClient provides an implementation of
 // VariationsServiceClient that depends on chrome/.
 class ChromeVariationsServiceClient
@@ -20,8 +24,17 @@ class ChromeVariationsServiceClient
   std::string GetApplicationLocale() override;
   net::URLRequestContextGetter* GetURLRequestContext() override;
   network_time::NetworkTimeTracker* GetNetworkTimeTracker() override;
+  void OnInitialStartup() override;
 
  private:
+#if defined(OS_WIN)
+  // Starts syncing Google Update Variation IDs with the registry.
+  void StartGoogleUpdateRegistrySync();
+
+  // Helper that handles synchronizing Variations with the Registry.
+  chrome_variations::VariationsRegistrySyncer registry_syncer_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(ChromeVariationsServiceClient);
 };