Create storage_unittests target.

storage/browser/crbug653751_unittest.cc

Index: storage/browser/crbug653751_unittest.cc
diff --git a/storage/browser/crbug653751_unittest.cc b/storage/browser/crbug653751_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..44b86fb6ee43c98f6c407e09c0da63c91e4caa72
--- /dev/null
+++ b/storage/browser/crbug653751_unittest.cc
@@ -0,0 +1,13 @@
+// Copyright 2016 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 "testing/gtest/include/gtest/gtest.h"
+
+// This file will be removed when the real storage unit tests are migrated over
+// from content_unittests to storage_unittests. Until then, it is needed to keep
+// the win_clang builder happy. See http://crbug.com/653751
+
+TEST(StorageUnittests, EmptyTest) {
+
+}