[Sync] Generalize StringOrdinal to handle ordinal_in_parent field

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
index 1cbc800b11a78c2744fc0cff013b8a077eb06326..dfad3cc1a2eaf5536a8c605d39245473c39fdec8 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
@@ -165,7 +165,7 @@ void AppLauncherHandler::CreateAppInfo(
     value->Set("notification", SerializeNotification(*notification));
 
   ExtensionSorting* sorting = prefs->extension_sorting();
-  StringOrdinal page_ordinal = sorting->GetPageOrdinal(extension->id());
+  syncer::StringOrdinal page_ordinal = sorting->GetPageOrdinal(extension->id());
   if (!page_ordinal.IsValid()) {
     // Make sure every app has a page ordinal (some predate the page ordinal).
     // The webstore app should be on the first page.
@@ -177,7 +177,7 @@ void AppLauncherHandler::CreateAppInfo(
   value->SetInteger("page_index",
       sorting->PageStringOrdinalAsInteger(page_ordinal));
 
-  StringOrdinal app_launch_ordinal =
+  syncer::StringOrdinal app_launch_ordinal =
       sorting->GetAppLaunchOrdinal(extension->id());
   if (!app_launch_ordinal.IsValid()) {
     // Make sure every app has a launch ordinal (some predate the launch
@@ -652,7 +652,7 @@ void AppLauncherHandler::HandleSetPageIndex(const ListValue* args) {
   double page_index;
   CHECK(args->GetString(0, &extension_id));
   CHECK(args->GetDouble(1, &page_index));
-  const StringOrdinal& page_ordinal =
+  const syncer::StringOrdinal& page_ordinal =
       extension_sorting->PageIntegerAsStringOrdinal(
           static_cast<size_t>(page_index));
 
@@ -687,7 +687,7 @@ void AppLauncherHandler::HandleGenerateAppForLink(const ListValue* args) {
   CHECK(args->GetDouble(2, &page_index));
   ExtensionSorting* extension_sorting =
       extension_service_->extension_prefs()->extension_sorting();
-  const StringOrdinal& page_ordinal =
+  const syncer::StringOrdinal& page_ordinal =
       extension_sorting->PageIntegerAsStringOrdinal(
           static_cast<size_t>(page_index));