Introduce the plumbing necessary to report Unrecoverable error from model safe workers.

chrome/browser/sync/internal_api/sync_manager.cc

 // 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.
 
 #include "chrome/browser/sync/internal_api/sync_manager.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/command_line.h"
@@ skipping 1672 matching lines @@
     return;
   }
 
   if (event.what_happened == SyncEngineEvent::ACTIONABLE_ERROR) {
     FOR_EACH_OBSERVER(SyncManager::Observer, observers_,
                       OnActionableError(
                           event.snapshot->errors.sync_protocol_error));
     return;
   }
 
+  if (event.what_happened == SyncEngineEvent::UNRECOVERABLE_ERROR) {
+    FOR_EACH_OBSERVER(SyncManager::Observer, observers_,
+                      OnUnrecoverableError(
+                          event.unrecoverable_error_info.location,
+                          event.unrecoverable_error_info.message));
+    return;
+  }
+
 }
 
 void SyncManager::SyncInternal::SetJsEventHandler(
     const WeakHandle<JsEventHandler>& event_handler) {
   js_event_handler_ = event_handler;
   js_sync_manager_observer_.SetJsEventHandler(js_event_handler_);
   js_mutation_event_observer_.SetJsEventHandler(js_event_handler_);
 }
 
 void SyncManager::SyncInternal::ProcessJsMessage(
@@ skipping 375 matching lines @@
 
   for (syncable::ModelTypeSet::const_iterator i = types.begin();
        i != types.end(); ++i) {
     if (!lookup->initial_sync_ended_for_type(*i))
       return false;
   }
   return true;
 }
 
 }  // namespace sync_api