[BlobStorage] BlobMemoryController & tests

storage/browser/blob/blob_data_item.h

Index: storage/browser/blob/blob_data_item.h
diff --git a/storage/browser/blob/blob_data_item.h b/storage/browser/blob/blob_data_item.h
index a711a4caf3b3fe4bc969be9e63c87bb33aa79834..9f30030cad5d69a664f306abc2bb6e3e7662cc76 100644
--- a/storage/browser/blob/blob_data_item.h
+++ b/storage/browser/blob/blob_data_item.h
@@ -21,6 +21,7 @@ class Entry;
 
 namespace storage {
 class BlobDataBuilder;
+class BlobMemoryController;
 class BlobStorageContext;
 
 // Ref counted blob item. This class owns the backing data of the blob item. The
@@ -65,6 +66,7 @@ class STORAGE_EXPORT BlobDataItem : public base::RefCounted<BlobDataItem> {
 
  private:
   friend class BlobDataBuilder;
+  friend class BlobMemoryController;
   friend class BlobStorageContext;
   friend class base::RefCounted<BlobDataItem>;
   friend STORAGE_EXPORT void PrintTo(const BlobDataItem& x, ::std::ostream* os);
@@ -77,6 +79,7 @@ class STORAGE_EXPORT BlobDataItem : public base::RefCounted<BlobDataItem> {
                disk_cache::Entry* entry,
                int disk_cache_stream_index,
                int disk_cache_side_stream_index);
+
   virtual ~BlobDataItem();
 
   std::unique_ptr<DataElement> item_;