Remove implicit conversions from scoped_refptr to T* in chrome/

chrome/browser/local_discovery/service_discovery_client_mac_unittest.mm

 // Copyright 2013 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/bind.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/common/local_discovery/service_discovery_client.h"
@@ skipping 26 matching lines @@
 }
 
 @end
 
 namespace local_discovery {
 
 class ServiceDiscoveryClientMacTest : public CocoaTest {
  public:
   ServiceDiscoveryClientMacTest() : num_updates_(0), num_resolves_(0) {
     client_mac_ = new ServiceDiscoveryClientMac();
-    client_ = client_mac_;
+    client_ = client_mac_.get();
   }
 
   void OnServiceUpdated(
       ServiceWatcher::UpdateType update,
       const std::string& service_name) {
     last_update_ = update;
     last_service_name_ = service_name;
     num_updates_++;
   }
 
@@ skipping 64 matching lines @@
   resolver_impl->GetContainerForTesting()->OnResolveUpdate(
       ServiceResolver::STATUS_SUCCESS);
 
   base::MessageLoop::current()->RunUntilIdle();
 
   EXPECT_EQ(1, num_resolves_);
   EXPECT_EQ(2u, last_service_description_.metadata.size());
 }
 
 }  // namespace local_discovery