Revert "Create ServiceWorkerProviderHost before starting worker"

content/browser/background_sync/background_sync_manager_unittest.cc

Index: content/browser/background_sync/background_sync_manager_unittest.cc
diff --git a/content/browser/background_sync/background_sync_manager_unittest.cc b/content/browser/background_sync/background_sync_manager_unittest.cc
index 7b10ed8692831351a46de76abd0a5951bbc5871a..81ed0b6d73712946bca0df474542c94d432e931b 100644
--- a/content/browser/background_sync/background_sync_manager_unittest.cc
+++ b/content/browser/background_sync/background_sync_manager_unittest.cc
@@ -27,8 +27,6 @@
 #include "content/browser/service_worker/embedded_worker_test_helper.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
-#include "content/browser/service_worker/service_worker_dispatcher_host.h"
-#include "content/browser/service_worker/service_worker_registration_handle.h"
 #include "content/browser/service_worker/service_worker_storage.h"
 #include "content/browser/storage_partition_impl.h"
 #include "content/public/browser/background_sync_parameters.h"
@@ -447,28 +445,7 @@ TEST_F(BackgroundSyncManagerTest, RegistrationIntact) {
 }
 
 TEST_F(BackgroundSyncManagerTest, RegisterWithoutLiveSWRegistration) {
-  // Get a provider host which is used to install the service worker.
-  ASSERT_TRUE(sw_registration_1_->active_version());
-  ASSERT_FALSE(sw_registration_1_->waiting_version());
-  ASSERT_FALSE(sw_registration_1_->installing_version());
-  ServiceWorkerProviderHost* provider_host =
-      sw_registration_1_->active_version()->provider_host();
-  ASSERT_TRUE(provider_host);
-  int process_id = provider_host->process_id();
-  int provider_id = provider_host->provider_id();
-
-  // Remove the registration handle registered on the dispatcher host.
-  ServiceWorkerDispatcherHost* dispatcher_host =
-      helper_->context()->GetDispatcherHost(process_id);
-  ServiceWorkerRegistrationHandle* handle =
-      dispatcher_host->FindRegistrationHandle(provider_id,
-                                              sw_registration_1_->id());
-  dispatcher_host->OnDecrementRegistrationRefCount(handle->handle_id());
-
-  // Ensure |sw_registration_1_| is the last reference to the registration.
-  ASSERT_TRUE(sw_registration_1_->HasOneRef());
   sw_registration_1_ = nullptr;
-
   EXPECT_FALSE(Register(sync_options_1_));
   EXPECT_EQ(BACKGROUND_SYNC_STATUS_NO_SERVICE_WORKER, callback_status_);
 }