Replace calls to 3-arg SyncData::CreateLocalData with 5-arg version.

sync/api/attachments/attachment_service_proxy.h

Index: sync/api/attachments/attachment_service_proxy.h
diff --git a/sync/api/attachments/attachment_service_proxy.h b/sync/api/attachments/attachment_service_proxy.h
index 5bec1b3206ab8007e3937d5df00c364a6473b83b..cebc4daaaf30444c0272fe584e0c99fa9e5926ee 100644
--- a/sync/api/attachments/attachment_service_proxy.h
+++ b/sync/api/attachments/attachment_service_proxy.h
@@ -33,7 +33,9 @@ class SyncData;
 //  correct thread (wrapped_task_runner).
 //
 // This class is thread-safe.
-class SYNC_EXPORT AttachmentServiceProxy : public AttachmentService {
+class SYNC_EXPORT AttachmentServiceProxy
+    : public AttachmentService,
+      public base::RefCountedThreadSafe<AttachmentServiceProxy> {
  public:
   // Default copy and assignment are welcome.
 
@@ -46,8 +48,6 @@ class SYNC_EXPORT AttachmentServiceProxy : public AttachmentService {
       const scoped_refptr<base::SequencedTaskRunner>& wrapped_task_runner,
       base::WeakPtr<syncer::AttachmentService> wrapped);
 
-  virtual ~AttachmentServiceProxy();
-
   // AttachmentService implementation.
   virtual void GetOrDownloadAttachments(const AttachmentIdList& attachment_ids,
                                         const GetOrDownloadCallback& callback)
@@ -59,7 +59,12 @@ class SYNC_EXPORT AttachmentServiceProxy : public AttachmentService {
   virtual void OnSyncDataUpdate(const AttachmentIdList& old_attachment_ids,
                                 const SyncData& updated_sync_data) OVERRIDE;
 
+ protected:
+  virtual ~AttachmentServiceProxy();
+
  private:
+  friend class base::RefCountedThreadSafe<AttachmentServiceProxy>;
+
   scoped_refptr<base::SequencedTaskRunner> wrapped_task_runner_;
   // wrapped_ must only be dereferenced on the wrapped_task_runner_ thread.
   base::WeakPtr<AttachmentService> wrapped_;