Make nesting/running states a RunLoop rather than a MessageLoop concept.

third_party/WebKit/Source/platform/scheduler/base/task_queue_manager_delegate_for_test.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 "platform/scheduler/base/task_queue_manager_delegate_for_test.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 34 matching lines @@
 
 bool TaskQueueManagerDelegateForTest::RunsTasksOnCurrentThread() const {
   return task_runner_->RunsTasksOnCurrentThread();
 }
 
 bool TaskQueueManagerDelegateForTest::IsNested() const {
   return false;
 }
 
 void TaskQueueManagerDelegateForTest::AddNestingObserver(
-    base::MessageLoop::NestingObserver* observer) {}
+    base::RunLoop::NestingObserver* observer) {}
 
 void TaskQueueManagerDelegateForTest::RemoveNestingObserver(
-    base::MessageLoop::NestingObserver* observer) {}
+    base::RunLoop::NestingObserver* observer) {}
 
 base::TimeTicks TaskQueueManagerDelegateForTest::NowTicks() {
   return time_source_->NowTicks();
 }
 
 }  // namespace scheduler
 }  // namespace blink