[IndexedDB] Mojo testing harness.

content/browser/indexed_db/mock_mojo_indexed_db_callbacks.cc

Index: content/browser/indexed_db/mock_mojo_indexed_db_callbacks.cc
diff --git a/content/browser/indexed_db/mock_mojo_indexed_db_callbacks.cc b/content/browser/indexed_db/mock_mojo_indexed_db_callbacks.cc
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+// Copyright 2017 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/mock_mojo_indexed_db_callbacks.h"
+
+namespace content {
+
+MockMojoIndexedDBCallbacks::MockMojoIndexedDBCallbacks() {}
+MockMojoIndexedDBCallbacks::~MockMojoIndexedDBCallbacks() {}
+}