[DevTools] Fix DevToolsManagerTest.TestObserver

content/browser/devtools/devtools_manager.cc

 // Copyright (c) 2012 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/browser/devtools/devtools_manager.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/devtools/devtools_agent_host_impl.h"
 #include "content/browser/devtools/devtools_netlog_observer.h"
@@ skipping 105 matching lines @@
       &DevToolsManager::NotifyTargetListChanged,
       base::Unretained(this)));
 }
 
 void DevToolsManager::NotifyTargetListChanged(
     const Observer::TargetList& targets) {
   FOR_EACH_OBSERVER(Observer, observer_list_, TargetListChanged(targets));
   STLDeleteContainerPointers(targets.begin(), targets.end());
 }
 
-void DevToolsManager::SetSchedulerForTest(Scheduler scheduler) {
+void DevToolsManager::SetUpForTest(Scheduler scheduler) {
   scheduler_ = scheduler;
+  delegate_.reset(GetContentClient()->browser()->GetDevToolsManagerDelegate());
 }
 
 }  // namespace content