Add the backchannel for Blobs to be received into Blink from the database backend.

Source/modules/indexeddb/IDBDatabase.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 82 matching lines @@
 }
 
 int64_t IDBDatabase::nextTransactionId()
 {
     // Only keep a 32-bit counter to allow ports to use the other 32
     // bits of the id.
     AtomicallyInitializedStatic(int, currentTransactionId = 0);
     return atomicIncrement(&currentTransactionId);
 }
 
+void IDBDatabase::ackReceivedBlobs(const Vector<blink::WebBlobInfo>* blobInfo)
+{
+    ASSERT(blobInfo);
+    if (!blobInfo->size() || !m_backend)
+        return;
+    Vector<blink::WebBlobInfo>::const_iterator iter;
+    Vector<String> uuids;
+    uuids.reserveCapacity(blobInfo->size());
+    for (iter = blobInfo->begin(); iter != blobInfo->end(); ++iter)
+        uuids.append(iter->uuid());
+    m_backend->ackReceivedBlobs(uuids);
+}
+
 void IDBDatabase::indexCreated(int64_t objectStoreId, const IDBIndexMetadata& metadata)
 {
     IDBDatabaseMetadata::ObjectStoreMap::iterator it = m_metadata.objectStores.find(objectStoreId);
     ASSERT_WITH_SECURITY_IMPLICATION(it != m_metadata.objectStores.end());
     it->value.indexes.set(metadata.id, metadata);
 }
 
 void IDBDatabase::indexDeleted(int64_t objectStoreId, int64_t indexId)
 {
     IDBDatabaseMetadata::ObjectStoreMap::iterator it = m_metadata.objectStores.find(objectStoreId);
@@ skipping 326 matching lines @@
 {
     return EventTargetNames::IDBDatabase;
 }
 
 ExecutionContext* IDBDatabase::executionContext() const
 {
     return ActiveDOMObject::executionContext();
 }
 
 } // namespace WebCore