[BlobStorage] Implementing disk.

storage/browser/blob/blob_entry.cc

Index: storage/browser/blob/blob_entry.cc
diff --git a/storage/browser/blob/blob_entry.cc b/storage/browser/blob/blob_entry.cc
index 094eb3656412a66f67e3497476fa9ba48f896e59..886f96090a758e66cdebd522e5d3465668f38950 100644
--- a/storage/browser/blob/blob_entry.cc
+++ b/storage/browser/blob/blob_entry.cc
@@ -38,6 +38,15 @@ BlobEntry::BuildingState::BuildingState(
 
 BlobEntry::BuildingState::~BuildingState() {}
 
+void BlobEntry::BuildingState::CancelRequests() {
+  if (copy_quota_request) {
+    copy_quota_request->Cancel();
+  }
+  if (transport_quota_request) {
+    transport_quota_request->Cancel();
+  }
+}
+
 BlobEntry::BlobEntry(const std::string& content_type,
                      const std::string& content_disposition)
     : content_type_(content_type), content_disposition_(content_disposition) {}