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

chrome/browser/media/router/media_router_mojo_impl_unittest.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 <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
@@ skipping 65 matching lines @@
 // handling.
 class TestProcessManager : public extensions::ProcessManager {
  public:
   explicit TestProcessManager(content::BrowserContext* context)
       : extensions::ProcessManager(
             context,
             context,
             extensions::ExtensionRegistry::Get(context)) {}
   ~TestProcessManager() override {}
 
-  static KeyedService* Create(content::BrowserContext* context) {
-    return new TestProcessManager(context);
+  static scoped_ptr<KeyedService> Create(content::BrowserContext* context) {
+    return make_scoped_ptr(new TestProcessManager(context));
   }
 
   MOCK_METHOD1(IsEventPageSuspended, bool(const std::string& ext_id));
 
   MOCK_METHOD2(WakeEventPage,
                bool(const std::string& extension_id,
                     const base::Callback<void(bool)>& callback));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestProcessManager);
@@ skipping 273 matching lines @@
               CloseRoute(mojo::String(kRouteId2)));
   binding.reset(new mojo::Binding<interfaces::MediaRouter>(
       &mock_mojo_media_router_service, mojo::GetProxy(&mojo_media_router)));
   mojo_media_router_observer->ProvideMediaRouter(
       mojo_media_router.Pass(), base::Bind(&ProvideMediaRouterHandler::Invoke,
                                            base::Unretained(&provide_handler)));
   message_loop.RunUntilIdle();
 }
 
 }  // namespace media_router