Always use ProfileSyncService::ShowErrorUI to handle error links.

chrome/browser/dom_ui/options/personal_options_handler.cc

Index: chrome/browser/dom_ui/options/personal_options_handler.cc
diff --git a/chrome/browser/dom_ui/options/personal_options_handler.cc b/chrome/browser/dom_ui/options/personal_options_handler.cc
index 504ea54b4ca92bfe358c70861410ea89fcfd82b5..682ecff01c6a81192a3455f2a9a36ca2fb27d593 100644
--- a/chrome/browser/dom_ui/options/personal_options_handler.cc
+++ b/chrome/browser/dom_ui/options/personal_options_handler.cc
@@ -165,6 +165,9 @@ void PersonalOptionsHandler::GetLocalizedValues(
 void PersonalOptionsHandler::RegisterMessages() {
   DCHECK(dom_ui_);
   dom_ui_->RegisterMessageCallback(
+      "showSyncActionDialog",
+      NewCallback(this, &PersonalOptionsHandler::ShowSyncActionDialog));
+  dom_ui_->RegisterMessageCallback(
       "showSyncLoginDialog",
       NewCallback(this, &PersonalOptionsHandler::ShowSyncLoginDialog));
   dom_ui_->RegisterMessageCallback(
@@ -321,24 +324,26 @@ void PersonalOptionsHandler::Initialize() {
   }
 }
 
-void PersonalOptionsHandler::ShowSyncLoginDialog(const ListValue* args) {
+void PersonalOptionsHandler::ShowSyncActionDialog(const ListValue* args) {
   ProfileSyncService* service = dom_ui_->GetProfile()->GetProfileSyncService();
   DCHECK(service);
-  if (service->HasSyncSetupCompleted()) {
-    service->ShowErrorUI(NULL);
-  } else {
+  service->ShowErrorUI(NULL);
+}
+
+void PersonalOptionsHandler::ShowSyncLoginDialog(const ListValue* args) {
 #if defined(OS_CHROMEOS)
-    std::string email = chromeos::UserManager::Get()->logged_in_user().email();
-    string16 message = l10n_util::GetStringFUTF16(
-        IDS_SYNC_LOGIN_INTRODUCTION,
-        l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
-    dom_ui_->GetProfile()->GetBrowserSignin()->RequestSignin(
-        dom_ui_->tab_contents(), UTF8ToUTF16(email), message, this);
+  std::string email = chromeos::UserManager::Get()->logged_in_user().email();
+  string16 message = l10n_util::GetStringFUTF16(
+      IDS_SYNC_LOGIN_INTRODUCTION,
+      l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
+  dom_ui_->GetProfile()->GetBrowserSignin()->RequestSignin(
+      dom_ui_->tab_contents(), UTF8ToUTF16(email), message, this);
 #else
-    service->ShowLoginDialog(NULL);
-    ProfileSyncService::SyncEvent(ProfileSyncService::START_FROM_OPTIONS);
+  ProfileSyncService* service = dom_ui_->GetProfile()->GetProfileSyncService();
+  DCHECK(service);
+  service->ShowLoginDialog(NULL);
+  ProfileSyncService::SyncEvent(ProfileSyncService::START_FROM_OPTIONS);
 #endif
-  }
 }
 
 void PersonalOptionsHandler::ShowCustomizeSyncDialog(const ListValue* args) {