Add ShareGroup stub

gpu/command_buffer/client/share_group_unittest.cc

+// Copyright (c) 2012 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.
+
+// Tests for the ShareGroup.
+
+#include "gpu/command_buffer/client/share_group.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace gpu {
+namespace gles2 {
+
+class ShareGroupTest : public testing::Test {
+ protected:
+
+  virtual void SetUp() {
+    share_group_ = ShareGroup::Ref(new ShareGroup());
+  }
+
+  virtual void TearDown() {
+  }
+
+  scoped_refptr<ShareGroup> share_group_;
+};
+
+TEST_F(ShareGroupTest, Basic) {
+  EXPECT_TRUE(ShareGroup::ImplementsThreadSafeReferenceCounting());
+}
+
+}  // namespace gles2
+}  // namespace gpu
+
+