Invoke AttachmentUploader and update AttachmentIds.

sync/api/attachments/fake_attachment_service.h

Index: sync/api/attachments/fake_attachment_service.h
diff --git a/sync/api/attachments/fake_attachment_service.h b/sync/api/attachments/fake_attachment_service.h
index 8159e0f9dd68af9508eaeab01afbf1b63d12d270..e35da216ea94ada4fa53b9c334b4b1fc9210b365 100644
--- a/sync/api/attachments/fake_attachment_service.h
+++ b/sync/api/attachments/fake_attachment_service.h
@@ -26,6 +26,7 @@ class SYNC_EXPORT FakeAttachmentService : public AttachmentService,
   static scoped_ptr<syncer::AttachmentService> CreateForTest();
 
   // AttachmentService implementation.
+  virtual void SetDelegate(Delegate* delegate) OVERRIDE;
   virtual void GetOrDownloadAttachments(const AttachmentIdList& attachment_ids,
                                         const GetOrDownloadCallback& callback)
       OVERRIDE;
@@ -45,9 +46,12 @@ class SYNC_EXPORT FakeAttachmentService : public AttachmentService,
                 const AttachmentStore::Result& result);
   void WriteDone(const StoreCallback& callback,
                  const AttachmentStore::Result& result);
+  void UploadDone(const AttachmentUploader::UploadResult& result,
+                  const AttachmentId& attachment_id);
 
   const scoped_ptr<AttachmentStore> attachment_store_;
   const scoped_ptr<AttachmentUploader> attachment_uploader_;
+  Delegate* delegate_;
   // Must be last data member.
   base::WeakPtrFactory<FakeAttachmentService> weak_ptr_factory_;