Create a content::ResourceContext.

content/browser/mock_resource_context.cc

+// Copyright (c) 2011 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/mock_resource_context.h"
+
+#include "base/lazy_instance.h"
+
+namespace content {
+
+static base::LazyInstance<MockResourceContext>
+    g_mock_resource_context(base::LINKER_INITIALIZED);
+
+const ResourceContext& MockResourceContext::GetInstance() {
+  return g_mock_resource_context.Get();
+}
+
+MockResourceContext::MockResourceContext() {}
+MockResourceContext::~MockResourceContext() {}
+
+void MockResourceContext::EnsureInitialized() const {}
+
+}  // namespace content