IndexedDB: Test that Blink ack's blobs upon receipt.

storage/browser/blob/blob_storage_context.h

Index: storage/browser/blob/blob_storage_context.h
diff --git a/storage/browser/blob/blob_storage_context.h b/storage/browser/blob/blob_storage_context.h
index 86610cfdfcdbcd31700dcf40b395ee0ef726581d..89cee3bcbfbb9739f71f967e2925f50f42d07f52 100644
--- a/storage/browser/blob/blob_storage_context.h
+++ b/storage/browser/blob/blob_storage_context.h
@@ -62,6 +62,7 @@ class STORAGE_EXPORT BlobStorageContext
   void RevokePublicBlobURL(const GURL& url);
 
   size_t memory_usage() const { return memory_usage_; }
+  size_t num_blobs() const { return blob_map_.size(); }

[jsbell, 2015/02/13 16:53:29]

naming nit: Avoid use abbreviations like 'num'

Looking at other examples... how about blob_map_size() or blob_count() ?

Alternately, flip the semantics and make it Empty() ?

[cmumford, 2015/02/13 17:03:39]

Done.

 
  private:
   friend class content::BlobStorageHost;