Use new app-level object instantiation mechanism

chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
index c92e632ae6cea401f212dad43aa430ca91069d1e..255dbccd11fbae0d876f173177be00191dc09ef1 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
@@ -30,6 +30,7 @@ import org.chromium.base.VisibleForTesting;
 import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.chrome.browser.bookmarkswidget.BookmarkWidgetProvider;
 import org.chromium.chrome.browser.crash.MinidumpUploadService;
+import org.chromium.chrome.browser.gsa.GSAHelper;
 import org.chromium.chrome.browser.init.ProcessInitializationHandler;
 import org.chromium.chrome.browser.locale.LocaleManager;
 import org.chromium.chrome.browser.media.MediaCaptureNotificationService;
@@ -225,13 +226,11 @@ public class DeferredStartupHandler {
             }
         });
 
-        final ChromeApplication application = (ChromeApplication) mAppContext;
-
         mDeferredTasks.add(new Runnable() {
             @Override
             public void run() {
                 // Starts syncing with GSA.
-                application.createGsaHelper().startSync();
+                ChromeApplication.createObject(GSAHelper.class).startSync();
             }
         });