Migrate Extensions code to Task Scheduler API

extensions/browser/api/storage/storage_frontend_unittest.cc

Index: extensions/browser/api/storage/storage_frontend_unittest.cc
diff --git a/extensions/browser/api/storage/storage_frontend_unittest.cc b/extensions/browser/api/storage/storage_frontend_unittest.cc
index ec47409774baa6d5c691bb54f8864601592424e2..dc926ab2e17b12d899c8380c076d1609da9a460a 100644
--- a/extensions/browser/api/storage/storage_frontend_unittest.cc
+++ b/extensions/browser/api/storage/storage_frontend_unittest.cc
@@ -9,11 +9,11 @@
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
-#include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
+#include "content/public/test/test_utils.h"
 #include "extensions/browser/api/extensions_api_client.h"
 #include "extensions/browser/api/storage/settings_namespace.h"
 #include "extensions/browser/api/storage/settings_test_util.h"
@@ -52,7 +52,7 @@ class ExtensionSettingsFrontendTest : public ExtensionsTest {
   void TearDown() override {
     frontend_.reset();
     // Execute any pending deletion tasks.
-    base::RunLoop().RunUntilIdle();
+    content::RunAllBlockingPoolTasksUntilIdle();
     ExtensionsTest::TearDown();
   }
 
@@ -133,7 +133,7 @@ TEST_F(ExtensionSettingsFrontendTest, SettingsClearedOnUninstall) {
 
   // This would be triggered by extension uninstall via a DataDeleter.
   frontend_->DeleteStorageSoon(id);
-  base::RunLoop().RunUntilIdle();
+  content::RunAllBlockingPoolTasksUntilIdle();
 
   // The storage area may no longer be valid post-uninstall, so re-request.
   storage = util::GetStorage(extension, settings::LOCAL, frontend_.get());
@@ -168,7 +168,7 @@ TEST_F(ExtensionSettingsFrontendTest, LeveldbDatabaseDeletedFromDiskOnClear) {
   }
 
   frontend_.reset();
-  base::RunLoop().RunUntilIdle();
+  content::RunAllBlockingPoolTasksUntilIdle();
   // TODO(kalman): Figure out why this fails, despite appearing to work.
   // Leaving this commented out rather than disabling the whole test so that the
   // deletion code paths are at least exercised.