Replace AttachmentStore's StoreAttachments with UploadAttachments.

components/sync_driver/generic_change_processor.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 COMPONENTS_SYNC_DRIVER_GENERIC_CHANGE_PROCESSOR_H_
 #define COMPONENTS_SYNC_DRIVER_GENERIC_CHANGE_PROCESSOR_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "components/sync_driver/change_processor.h"
 #include "components/sync_driver/data_type_controller.h"
 #include "components/sync_driver/data_type_error_handler.h"
+#include "sync/api/attachments/attachment_store.h"
 #include "sync/api/sync_change_processor.h"
 #include "sync/api/sync_merge_result.h"
 #include "sync/internal_api/public/attachments/attachment_service.h"
 #include "sync/internal_api/public/attachments/attachment_service_proxy.h"
 
 namespace syncer {
 class SyncData;
 class SyncableService;
 class WriteNode;
 class WriteTransaction;
@@ skipping 93 matching lines @@
   //
   // |new_attachments| is an output parameter containing newly added attachments
   // that need to be stored.  This method will append to it.
   syncer::SyncError HandleActionUpdate(const syncer::SyncChange& change,
                                        const std::string& type_str,
                                        const syncer::ModelType& type,
                                        const syncer::WriteTransaction& trans,
                                        syncer::WriteNode* sync_node,
                                        syncer::AttachmentList* new_attachments);
 
+  // Store |attachments| locally then upload them to the sync server.
+  //
+  // Store and uploading are asynchronous operations.  |WriteAttachmentsDone|
+  // will be invoked once the attachments have been stored on the local device.
+  void StoreAndUploadAttachments(const syncer::AttachmentList& attachments);
+
+  // Invoked once attachments have been stored locally.
+  //
+  // See also AttachmentStore::WriteCallback.
+  void WriteAttachmentsDone(const syncer::AttachmentList& attachments,
+                            const syncer::AttachmentStore::Result& result);
+
   // The SyncableService this change processor will forward changes on to.
   const base::WeakPtr<syncer::SyncableService> local_service_;
 
   // A SyncMergeResult used to track the changes made during association. The
   // owner will invalidate the weak pointer when association is complete. While
   // the pointer is valid though, we increment it with any changes received
   // via ProcessSyncChanges.
   const base::WeakPtr<syncer::SyncMergeResult> merge_result_;
 
   // The current list of changes received from the syncer. We buffer because
   // we must ensure no syncapi transaction is held when we pass it on to
   // |local_service_|.
   // Set in ApplyChangesFromSyncModel, consumed in CommitChangesFromSyncModel.
   syncer::SyncChangeList syncer_changes_;
 
   // Our handle to the sync model. Unlike normal ChangeProcessors, we need to
   // be able to access the sync model before the change processor begins
   // listening to changes (the local_service_ will be interacting with us
   // when it starts up). As such we can't wait until Start(_) has been called,
   // and have to keep a local pointer to the user_share.
   syncer::UserShare* const share_handle_;
 
   scoped_ptr<syncer::AttachmentService> attachment_service_;
   // Must be destroyed before attachment_service_ to ensure WeakPtrs are
   // invalidated before attachment_service_ is destroyed.
   base::WeakPtrFactory<syncer::AttachmentService>
       attachment_service_weak_ptr_factory_;
   syncer::AttachmentServiceProxy attachment_service_proxy_;
 
+  base::WeakPtrFactory<GenericChangeProcessor> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(GenericChangeProcessor);
 };
 
 }  // namespace sync_driver
 
 #endif  // COMPONENTS_SYNC_DRIVER_GENERIC_CHANGE_PROCESSOR_H_