Run the account reconciler every time we start SyncManager

* This takes care of *some* of the race conditions where the
  account DB is blown away but the Email app is not running, so we
  don't get any notification of a change;  We have to try and
  sort this out early.
* SyncManager is started by Welcome, so this catches many cases of
  entering the email app.

Bug: 2567986
Change-Id: I76bea5b636802ba5c1677d8b1825fb3c61f7b2d9

src/com/android/exchange/SyncManager.java

@@ -921,24 +921,35 @@ public class SyncManager extends Service implements Runnable {
      */
     public class EasAccountsUpdatedListener implements OnAccountsUpdateListener {
         public void onAccountsUpdated(android.accounts.Account[] accounts) {
+            SyncManager syncManager = INSTANCE;
+            if (syncManager != null) {
+                syncManager.runAccountReconciler();
+            }
+        }
+    }
+
+    /**
+     * Non-blocking call to run the account reconciler.
+     * Launches a worker thread, so it may be called from UI thread.
+     */
+    private void runAccountReconciler() {
+        final SyncManager syncManager = this;
         new Thread() {
             @Override
             public void run() {
-                    SyncManager syncManager = INSTANCE;
-                    if (syncManager != null) {
                 android.accounts.Account[] accountMgrList = AccountManager.get(syncManager)
                         .getAccountsByType(Email.EXCHANGE_ACCOUNT_MANAGER_TYPE);
                 synchronized (sAccountList) {
                     // Make sure we have an up-to-date sAccountList
+                    if (mAccountObserver != null) {
                         mAccountObserver.onAccountChanged();
+                    }
                     reconcileAccountsWithAccountManager(syncManager, sAccountList,
                             accountMgrList, false, mResolver);
                 }
             }
-                }
         }.start();
     }
-    }
 
     protected static void log(String str) {
         if (Eas.USER_LOG) {
@@ -1059,6 +1070,9 @@ public class SyncManager extends Service implements Runnable {
                 throw new RuntimeException();
             }
         }
+        // Run the reconciler and clean up any mismatched accounts - if we weren't running when
+        // accounts were deleted, it won't have been called.
+        runAccountReconciler();
     }
 
     @Override