Blob support for IDB [Blink]

Source/modules/indexeddb/IDBCursor.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 292 matching lines @@
     DOMRequestState requestState(context);
     return idbKeyToScriptValue(&requestState, m_primaryKey);
 }
 
 ScriptValue IDBCursor::value(ScriptExecutionContext* context)
 {
     ASSERT(!isKeyCursor());
 
     m_valueDirty = false;
     DOMRequestState requestState(context);
-    ScriptValue value = deserializeIDBValueBuffer(&requestState, m_value);
+    ScriptValue value = deserializeIDBValueBuffer(&requestState, m_value, &m_blobInfo);
     RefPtr<IDBObjectStore> objectStore = effectiveObjectStore();
     const IDBObjectStoreMetadata metadata = objectStore->metadata();
     if (metadata.autoIncrement && !metadata.keyPath.isNull()) {
 #ifndef NDEBUG
         RefPtr<IDBKey> expectedKey = createIDBKeyFromScriptValueAndKeyPath(&requestState, value, metadata.keyPath);
         ASSERT(!expectedKey || expectedKey->isEqual(m_primaryKey.get()));
 #endif
         bool injected = injectIDBKeyIntoScriptValue(&requestState, m_primaryKey, value, metadata.keyPath);
         ASSERT_UNUSED(injected, injected);
     }
 
     return value;
 }
 
-void IDBCursor::setValueReady(PassRefPtr<IDBKey> key, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer> value)
+void IDBCursor::setValueReady(PassRefPtr<IDBKey> key, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer> value, Vector<BlobInfo>& blobInfo)
 {
     m_key = key;
     m_keyDirty = true;
 
     m_primaryKey = primaryKey;
     m_primaryKeyDirty = true;
 
     if (!isKeyCursor()) {
         m_value = value;
+        m_blobInfo.clear();
+        m_blobInfo.swap(blobInfo);

[jsbell, 2013/09/12 22:52:17]

I'm waffling on OwnPtr<Vector> vs. swapping here. Blink seems to use both
patterns about equally.

[ericu, 2013/11/20 23:06:08]

Switched to OwnPtr.

         m_valueDirty = true;
     }
 
     m_gotValue = true;
 }
 
 PassRefPtr<IDBObjectStore> IDBCursor::effectiveObjectStore()
 {
     if (m_source->type() == IDBAny::IDBObjectStoreType)
         return m_source->idbObjectStore();
@@ skipping 38 matching lines @@
     case IndexedDB::CursorPrevNoDuplicate:
         return IDBCursor::directionPrevUnique();
 
     default:
         ASSERT_NOT_REACHED();
         return IDBCursor::directionNext();
     }
 }
 
 } // namespace WebCore