Read services customization manifest on FILE thread

chrome/browser/chromeos/login/apply_services_customization.h

Index: chrome/browser/chromeos/login/apply_services_customization.h
diff --git a/chrome/browser/chromeos/login/apply_services_customization.h b/chrome/browser/chromeos/login/apply_services_customization.h
index 757ce7c4fa76fad1112e5e21cdbf4222a093ae2f..577b94d911523dd9fb6cb553853b3841b608f527 100644
--- a/chrome/browser/chromeos/login/apply_services_customization.h
+++ b/chrome/browser/chromeos/login/apply_services_customization.h
@@ -13,6 +13,7 @@
 #include "chrome/common/net/url_fetcher.h"
 #include "googleurl/src/gurl.h"
 
+class FilePath;
 class PrefService;
 
 namespace chromeos {
@@ -51,6 +52,12 @@ class ApplyServicesCustomization : public URLFetcher::Delegate {
   // Applies given |manifest|.
   void Apply(const std::string& manifest);
 
+  // Applies given |manifest| and delete this object.
+  void ApplyAndDelete(const std::string& manifest);
+
+  // Executes on FILE thread and reads file to string.
+  void ReadFileInBackground(const FilePath& file);
+
   // Remember in local state status of kServicesCustomizationAppliedPref.
   static void SetApplied(bool val);