[Sync] Add diagnostic into AndroidSyncSettingsTest

components/sync/android/java/src/org/chromium/components/sync/AndroidSyncSettings.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.components.sync;
 
 import android.accounts.Account;
 import android.annotation.SuppressLint;
 import android.content.ContentResolver;
 import android.content.Context;
@@ skipping 75 matching lines @@
         }
     }
 
     /**
      * @param context the context the ApplicationContext will be retrieved from.
      * @param syncContentResolverDelegate an implementation of {@link SyncContentResolverDelegate}.
      */
     private AndroidSyncSettings(
             Context context, SyncContentResolverDelegate syncContentResolverDelegate) {
         mApplicationContext = context.getApplicationContext();
+        mContractAuthority = mApplicationContext.getPackageName();
         mSyncContentResolverDelegate = syncContentResolverDelegate;
-        mContractAuthority = getContractAuthority();
 
         mAccount = ChromeSigninController.get().getSignedInUser();
         updateSyncability(null);
         updateCachedSettings();
 
         mSyncContentResolverDelegate.addStatusChangeListener(
                 ContentResolver.SYNC_OBSERVER_TYPE_SETTINGS,
                 new AndroidSyncSettingsChangedObserver());
     }
 
@@ skipping 71 matching lines @@
         if (sInstance.updateCachedSettings()) {
             sInstance.notifyObservers();
         }
     }
 
     /**
      * Returns the contract authority to use when requesting sync.
      */
     public static String getContractAuthority(Context context) {
         ensureInitialized(context);
-        return sInstance.getContractAuthority();
+        return sInstance.mContractAuthority;
     }
 
     /**
      * Add a new AndroidSyncSettingsObserver.
      */
     public static void registerObserver(Context context, AndroidSyncSettingsObserver observer) {
         ensureInitialized(context);
         synchronized (sInstance.mLock) {
             sInstance.mObservers.addObserver(observer);
         }
@@ skipping 115 matching lines @@
             return oldChromeSyncEnabled != mChromeSyncEnabled
                     || oldMasterSyncEnabled != mMasterSyncEnabled;
         }
     }
 
     private void notifyObservers() {
         for (AndroidSyncSettingsObserver observer : mObservers) {
             observer.androidSyncSettingsChanged();
         }
     }
-
-    private String getContractAuthority() {
-        return mApplicationContext.getPackageName();
-    }
 }