Move VariationsRegistrySyncerWin to ChromeVariationsServiceClient

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index 30ea2772e4d80308a6fbf34cd357bf7fbb265bdd..baa35686b437c98e8f5f2a46f19febbe72c279a0 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -1655,11 +1655,7 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
       chrome_variations::VariationsService* variations_service =
           browser_process_->variations_service();
       if (variations_service) {

[Alexei Svitkine (slow), 2015/08/24 16:36:31]

Nit: No {}s

[blundell, 2015/08/24 18:32:08]

Done.

-        variations_service->StartRepeatedVariationsSeedFetch();
-
-#if defined(OS_WIN)
-        variations_service->StartGoogleUpdateRegistrySync();
-#endif  // defined(OS_WIN)
+        variations_service->PerformInitialStartup();

[Alexei Svitkine (slow), 2015/08/24 16:36:31]

Hmm, this name isn't super accurate. In fact, this is the second stage of start
up - the initial start up is creating field trials which is done much earlier.

Maybe PerformPreMainMessageLoopStartup()?

[blundell, 2015/08/24 18:32:08]

Done.

       }
 
       translate::TranslateDownloadManager::RequestLanguageList(