Revert of Replace AttachmentStore's StoreAttachments with UploadAttachments.

sync/internal_api/public/attachments/attachment_service.h

 // 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.
 
 #ifndef SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_SERVICE_H_
 #define SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_SERVICE_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "sync/api/attachments/attachment.h"
 #include "sync/base/sync_export.h"
 
 namespace syncer {
 
-class AttachmentStore;
 class SyncData;
 
 // AttachmentService is responsible for managing a model type's attachments.
 //
 // Outside of sync code, AttachmentService shouldn't be used directly. Instead
 // use the functionality provided by SyncData and SyncChangeProcessor.
 //
 // Destroying this object does not necessarily cancel outstanding async
 // operations. If you need cancel like semantics, use WeakPtr in the callbacks.
 class SYNC_EXPORT AttachmentService {
@@ skipping 10 matching lines @@
 
   // The result of a DropAttachments operation.
   enum DropResult {
     DROP_SUCCESS,            // No error, all attachments dropped.
     DROP_UNSPECIFIED_ERROR,  // An unspecified error occurred. Some or all
                              // attachments may not have been dropped.
   };
 
   typedef base::Callback<void(const DropResult&)> DropCallback;
 
+  // The result of a StoreAttachments operation.
+  enum StoreResult {
+    STORE_SUCCESS,            // No error, all attachments stored (at least
+                              // locally).
+    STORE_UNSPECIFIED_ERROR,  // An unspecified error occurred. Some or all
+                              // attachments may not have been stored.
+  };
+
+  typedef base::Callback<void(const StoreResult&)> StoreCallback;
+
   // An interface that embedder code implements to be notified about different
   // events that originate from AttachmentService.
   // This interface will be called from the same thread AttachmentService was
   // created and called.
   class Delegate {
    public:
     virtual ~Delegate() {}
 
     // Attachment is uploaded to server and attachment_id is updated with server
     // url.
     virtual void OnAttachmentUploaded(const AttachmentId& attachment_id) = 0;
   };
 
   AttachmentService();
   virtual ~AttachmentService();
 
-  // Return a pointer to the AttachmentStore owned by this object.
-  //
-  // May return NULL.
-  virtual AttachmentStore* GetStore() = 0;
-
   // See SyncData::GetOrDownloadAttachments.
   virtual void GetOrDownloadAttachments(
       const AttachmentIdList& attachment_ids,
       const GetOrDownloadCallback& callback) = 0;
 
   // See SyncData::DropAttachments.
   virtual void DropAttachments(const AttachmentIdList& attachment_ids,
                                const DropCallback& callback) = 0;
 
-  // Schedules the attachments identified by |attachment_ids| to be uploaded to
-  // the server.
+  // Store |attachments| on device and (eventually) upload them to the server.
   //
-  // Assumes the attachments are already in the attachment store.
-  //
-  // A request to upload attachments is persistent in that uploads will be
-  // automatically retried if transient errors occur.
-  //
-  // A request to upload attachments does not persist across restarts of Chrome.
-  //
-  // Invokes OnAttachmentUploaded on the Delegate (if provided).
-  virtual void UploadAttachments(const AttachmentIdSet& attachment_ids) = 0;
+  // Invokes |callback| once the attachments have been written to device
+  // storage.
+  virtual void StoreAttachments(const AttachmentList& attachments,
+                                const StoreCallback& callback) = 0;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_SERVICE_H_