Add the IndexedDBActiveBlobRegistry, currently unused, to enable future blob

content/browser/indexed_db/indexed_db_backing_store_unittest.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/indexed_db/indexed_db_backing_store.h"
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/indexed_db/indexed_db_leveldb_coding.h"
 #include "content/browser/indexed_db/indexed_db_value.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/WebIDBTypes.h"
 
 using base::ASCIIToUTF16;
 
 namespace content {
 
 namespace {
 
 class IndexedDBBackingStoreTest : public testing::Test {
  public:
   IndexedDBBackingStoreTest() {}
   virtual void SetUp() {
     const GURL origin("http://localhost:81");
-    backing_store_ = IndexedDBBackingStore::OpenInMemory(origin);
+    backing_store_ =
+        IndexedDBBackingStore::OpenInMemory(origin, NULL /* task_runner */);
 
     // useful keys and values during tests
     m_value1 = IndexedDBValue("value1", std::vector<IndexedDBBlobInfo>());
     m_value2 = IndexedDBValue("value2", std::vector<IndexedDBBlobInfo>());
 
     m_key1 = IndexedDBKey(99, blink::WebIDBKeyTypeNumber);
     m_key2 = IndexedDBKey(ASCIIToUTF16("key2"));
   }
 
  protected:
@@ skipping 275 matching lines @@
     EXPECT_EQ(index_name, index.name);
     EXPECT_EQ(index_key_path, index.key_path);
     EXPECT_EQ(unique, index.unique);
     EXPECT_EQ(multi_entry, index.multi_entry);
   }
 }
 
 }  // namespace
 
 }  // namespace content