Implementation of OnDiskAttachmentStore.

sync/internal_api/attachments/attachment_store_handle.cc

Index: sync/internal_api/attachments/attachment_store_handle.cc
diff --git a/sync/internal_api/attachments/attachment_store_handle.cc b/sync/internal_api/attachments/attachment_store_handle.cc
index bfb637a141cbd46b653d29e83a2377c0a9fe1eef..ce9fe6621899dc43edc148f79224809b510993fa 100644
--- a/sync/internal_api/attachments/attachment_store_handle.cc
+++ b/sync/internal_api/attachments/attachment_store_handle.cc
@@ -37,6 +37,14 @@ AttachmentStoreHandle::~AttachmentStoreHandle() {
       FROM_HERE, base::Bind(&NoOp, base::Passed(&backend_)));
 }
 
+void AttachmentStoreHandle::Load(const LoadCallback& callback) {
+  DCHECK(CalledOnValidThread());
+  backend_task_runner_->PostTask(FROM_HERE,
+                                 base::Bind(&AttachmentStoreBase::Load,
+                                            base::Unretained(backend_.get()),
+                                            callback));
+}
+
 void AttachmentStoreHandle::Read(const AttachmentIdList& ids,
                                  const ReadCallback& callback) {
   DCHECK(CalledOnValidThread());