[BackgroundSync] Fix accidental fall-through in getRegistrations callack

content/child/background_sync/background_sync_provider.cc

 // 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.
 
 #include "content/child/background_sync/background_sync_provider.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/child/background_sync/background_sync_type_converters.h"
 #include "content/child/service_worker/web_service_worker_registration_impl.h"
@@ skipping 195 matching lines @@
   blink::WebVector<blink::WebSyncRegistration*>* results;
   switch (error) {
     case BACKGROUND_SYNC_ERROR_NONE:
       results = new blink::WebVector<blink::WebSyncRegistration*>(
           registrations.size());
       for (size_t i = 0; i < registrations.size(); ++i) {
         (*results)[i] = mojo::ConvertTo<scoped_ptr<blink::WebSyncRegistration>>(
                             registrations[i]).release();
       }
       callbacks->onSuccess(results);
+      break;
     case BACKGROUND_SYNC_ERROR_NOT_FOUND:
       // This error should never be returned from
       // BackgroundSyncManager::GetRegistrations
       NOTREACHED();
       break;
     case BACKGROUND_SYNC_ERROR_STORAGE:
       callbacks->onError(
           new blink::WebSyncError(blink::WebSyncError::ErrorTypeUnknown,
                                   "Background Sync is disabled."));
       break;
     case BACKGROUND_SYNC_ERROR_NO_SERVICE_WORKER:
       callbacks->onError(
           new blink::WebSyncError(blink::WebSyncError::ErrorTypeUnknown,
                                   "No service worker is active."));
       break;
   }
 }
 
 BackgroundSyncServicePtr&
 BackgroundSyncProvider::GetBackgroundSyncServicePtr() {
   if (!background_sync_service_.get())
     service_registry_->ConnectToRemoteService(&background_sync_service_);
   return background_sync_service_;
 }
 
 }  // namespace content