[Cleanup] Used scoped pointers in KeyedServiceFactory's SetTestingFactory functions.

extensions/browser/api/api_resource_manager.h

Index: extensions/browser/api/api_resource_manager.h
diff --git a/extensions/browser/api/api_resource_manager.h b/extensions/browser/api/api_resource_manager.h
index e90cb33c302b61ac2e715945a2901d5633d05235..29040d0421224298894dae44da2e67097084342b 100644
--- a/extensions/browser/api/api_resource_manager.h
+++ b/extensions/browser/api/api_resource_manager.h
@@ -10,6 +10,7 @@
 #include "base/containers/hash_tables.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/scoped_observer.h"
 #include "base/threading/non_thread_safe.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ -119,13 +120,12 @@ class ApiResourceManager : public BrowserContextKeyedAPI,
     process_manager_observer_.Add(ProcessManager::Get(context));
   }
   // For Testing.
-  static ApiResourceManager<T, TestThreadTraits<T> >*
+  static scoped_ptr<ApiResourceManager<T, TestThreadTraits<T>>>
   CreateApiResourceManagerForTest(content::BrowserContext* context,
                                   content::BrowserThread::ID thread_id) {
     TestThreadTraits<T>::thread_id_ = thread_id;
-    ApiResourceManager<T, TestThreadTraits<T> >* manager =
-        new ApiResourceManager<T, TestThreadTraits<T> >(context);
-    return manager;
+    return make_scoped_ptr(
+        new ApiResourceManager<T, TestThreadTraits<T>>(context));
   }
 
   virtual ~ApiResourceManager() {