[Sync] Handle errors during first sync gracefully.

chrome/browser/sync/sync_setup_wizard.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_SYNC_SYNC_SETUP_WIZARD_H_
 #define CHROME_BROWSER_SYNC_SYNC_SETUP_WIZARD_H_
 #pragma once
 
 #include "base/basictypes.h"
 
@@ skipping 17 matching lines @@
     // Show the screen that confirms everything will be synced.
     SYNC_EVERYTHING,
     // Show the screen that lets you configure sync.
     // There are two tabs:
     //  Data Types --
     //   Choose either "Keep everything synced" or
     //   "Choose which data types to sync", and checkboxes for each data type.
     //  Encryption --
     //   Choose what to encrypt and whether to use a passphrase.
     CONFIGURE,
+    // The state that we enter into if configure failed but we are retrying.
+    // It is upto each platform to implement the screen. In default case

[Andrew T Wilson (Slow), 2012/01/27 00:19:03]

upto->up to

[lipalani1, 2012/01/27 02:54:29]

Removed.
On 2012/01/27 00:19:03, Andrew T Wilson wrote:

+    // we just fall back to a UNRECOVERABLE_ERROR which would fallback
+    // to FATAL_ERROR. TODO(sync): We need to have a seperate screen
+    // for handling this.
+    CONFIGURE_RETRY,
     // Show the screen that prompts for your passphrase
     ENTER_PASSPHRASE,
     // An error has occurred in the backend. The next appropriate step is picked
     // based on which error has occurred.
     NONFATAL_ERROR,
     // The panic switch. Something went terribly wrong during setup and we can't
     // recover.
     FATAL_ERROR,
     // The client can't set up sync at the moment due to a concurrent operation
     // to clear cloud data being in progress on the server.
@@ skipping 35 matching lines @@
 
  private:
   ProfileSyncService* service_;
 
   SyncSetupFlowContainer* flow_container_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSetupWizard);
 };
 
 #endif  // CHROME_BROWSER_SYNC_SYNC_SETUP_WIZARD_H_