Adds the foundation for extensions test suite.

extensions/test/extensions_unittests_main.cc

+// Copyright 2014 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 "base/bind.h"
+#include "base/macros.h"
+#include "base/test/launcher/unit_test_launcher.h"
+#include "base/test/test_suite.h"
+
+namespace {
+
+class ExtensionsTestSuite : public base::TestSuite {
+ public:
+  ExtensionsTestSuite(int argc, char** argv);
+
+ protected:
+  // base::TestSuite:
+  virtual void Initialize() OVERRIDE;
+  virtual void Shutdown() OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ExtensionsTestSuite);
+};
+
+ExtensionsTestSuite::ExtensionsTestSuite(int argc, char** argv)
+    : base::TestSuite(argc, argv) {}
+
+void ExtensionsTestSuite::Initialize() {

[Yoyo Zhou, 2014/04/07 23:20:03]

It doesn't seem like these are doing anything for us, so there's no need to
override them.

+  base::TestSuite::Initialize();
+}
+
+void ExtensionsTestSuite::Shutdown() {
+  base::TestSuite::Shutdown();
+}
+
+}  // namespace
+
+int main(int argc, char** argv) {
+  ExtensionsTestSuite test_suite(argc, argv);
+
+  return base::LaunchUnitTests(argc,
+                               argv,
+                               base::Bind(&ExtensionsTestSuite::Run,
+                                          base::Unretained(&test_suite)));
+}