Implement a task scheduler for BrowsingDataRemover

chrome/browser/push_messaging/push_messaging_browsertest.cc

 // Copyright 2014 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 <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <string>
 
@@ skipping 1399 matching lines @@
   EXPECT_EQ(app_identifier.app_id(), gcm_service()->last_registered_app_id());
   PushMessagingAppIdentifier stored_app_identifier =
       PushMessagingAppIdentifier::FindByAppId(GetBrowser()->profile(),
                                               app_identifier.app_id());
   EXPECT_FALSE(stored_app_identifier.is_null());
 
   // Simulate a user clearing site data (including Service Workers, crucially).
   BrowsingDataRemover* remover =
       BrowsingDataRemoverFactory::GetForBrowserContext(GetBrowser()->profile());
   BrowsingDataRemoverCompletionObserver observer(remover);
-  remover->Remove(BrowsingDataRemover::Unbounded(),
-                  BrowsingDataRemover::REMOVE_SITE_DATA,
-                  BrowsingDataHelper::UNPROTECTED_WEB);
+  remover->RemoveAndReply(BrowsingDataRemover::Unbounded(),
+                          BrowsingDataRemover::REMOVE_SITE_DATA,
+                          BrowsingDataHelper::UNPROTECTED_WEB, &observer);
   observer.BlockUntilCompletion();
 
   base::RunLoop run_loop;
   push_service()->SetContentSettingChangedCallbackForTesting(
       run_loop.QuitClosure());
 
   // This shouldn't (asynchronously) cause a DCHECK.
   // TODO(johnme): Get this test running on Android, which has a different
   // codepath due to sender_id being required for unsubscribing there.
   HostContentSettingsMapFactory::GetForProfile(GetBrowser()->profile())
@@ skipping 140 matching lines @@
   ASSERT_FALSE(background_mode_manager->IsBackgroundModeActive());
 
   // After dropping the last subscription background mode is still inactive.
   std::string script_result;
   gcm_service()->AddExpectedUnregisterResponse(gcm::GCMClient::SUCCESS);
   ASSERT_TRUE(RunScript("unsubscribePush()", &script_result));
   EXPECT_EQ("unsubscribe result: true", script_result);
   ASSERT_FALSE(background_mode_manager->IsBackgroundModeActive());
 }
 #endif  // BUILDFLAG(ENABLE_BACKGROUND) && !defined(OS_CHROMEOS)