[Storage] Blob Storage Refactoring pt 1

storage/browser/blob/blob_url_request_job_factory.cc

Index: storage/browser/blob/blob_url_request_job_factory.cc
diff --git a/storage/browser/blob/blob_url_request_job_factory.cc b/storage/browser/blob/blob_url_request_job_factory.cc
index 60f9c738b9e74245871d167d2c9c2b8eb9bd3d6e..fe193afbeb8abd6069654d3828bd93bf5214993c 100644
--- a/storage/browser/blob/blob_url_request_job_factory.cc
+++ b/storage/browser/blob/blob_url_request_job_factory.cc
@@ -68,11 +68,11 @@ net::URLRequestJob* BlobProtocolHandler::MaybeCreateJob(
                                         file_loop_proxy_.get());
 }
 
-scoped_refptr<storage::BlobData> BlobProtocolHandler::LookupBlobData(
+scoped_ptr<BlobDataSnapshot> BlobProtocolHandler::LookupBlobData(
     net::URLRequest* request) const {
   BlobDataHandle* blob_data_handle = GetRequestedBlobDataHandle(request);
   if (blob_data_handle)
-    return blob_data_handle->data();
+    return blob_data_handle->CreateSnapshot().Pass();
   if (!context_.get())
     return NULL;
 
@@ -84,7 +84,12 @@ scoped_refptr<storage::BlobData> BlobProtocolHandler::LookupBlobData(
     return NULL;
   std::string uuid = request->url().spec().substr(kPrefix.length());
   scoped_ptr<BlobDataHandle> handle = context_->GetBlobDataFromUUID(uuid);
-  return handle.get() ? handle->data() : NULL;
+  scoped_ptr<BlobDataSnapshot> snapshot;
+  if (handle) {
+    snapshot = handle->CreateSnapshot().Pass();
+    SetRequestedBlobDataHandle(request, handle.Pass());
+  }
+  return snapshot.Pass();
 }
 
 }  // namespace storage