Port messages sent by WebIDBFactoryImpl to Mojo.

content/browser/indexed_db/indexed_db_transaction_unittest.cc

Index: content/browser/indexed_db/indexed_db_transaction_unittest.cc
diff --git a/content/browser/indexed_db/indexed_db_transaction_unittest.cc b/content/browser/indexed_db/indexed_db_transaction_unittest.cc
index 0308cbb453699147e09298321ccf8073ef9fadee..bcd30a2e29f481c99a855ffbcd9d1379e4046c69 100644
--- a/content/browser/indexed_db/indexed_db_transaction_unittest.cc
+++ b/content/browser/indexed_db/indexed_db_transaction_unittest.cc
@@ -9,7 +9,6 @@
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/macros.h"
-#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/indexed_db/indexed_db_connection.h"
@@ -17,6 +16,7 @@
 #include "content/browser/indexed_db/indexed_db_observer.h"
 #include "content/browser/indexed_db/mock_indexed_db_database_callbacks.h"
 #include "content/browser/indexed_db/mock_indexed_db_factory.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
@@ -69,8 +69,8 @@ class IndexedDBTransactionTest : public testing::Test {
   scoped_refptr<IndexedDBDatabase> db_;
 
  private:
-  base::MessageLoop message_loop_;
   scoped_refptr<MockIndexedDBFactory> factory_;
+  TestBrowserThreadBundle thread_bundle_;
 
   DISALLOW_COPY_AND_ASSIGN(IndexedDBTransactionTest);
 };