Remove implicit conversions from scoped_refptr to T* in sync/

sync/api/attachments/attachment.cc

 // Copyright 2014 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 "sync/api/attachments/attachment.h"
 
 #include "base/logging.h"
 
 namespace syncer {
 
@@ skipping 14 matching lines @@
 
 const AttachmentId& Attachment::GetId() const { return id_; }
 
 const scoped_refptr<base::RefCountedMemory>& Attachment::GetData() const {
   return data_;
 }
 
 Attachment::Attachment(const AttachmentId& id,
                        const scoped_refptr<base::RefCountedMemory>& data)
     : id_(id), data_(data) {
-  DCHECK(data);
+  DCHECK(data.get());
 }
 
 }  // namespace syncer