Revert "Delete CC."

cc/resources/texture_mailbox_deleter_unittest.cc

+// Copyright 2013 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 "cc/resources/texture_mailbox_deleter.h"
+
+#include "base/message_loop/message_loop_proxy.h"
+#include "cc/resources/single_release_callback.h"
+#include "cc/test/test_context_provider.h"
+#include "cc/test/test_web_graphics_context_3d.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace cc {
+namespace {
+
+TEST(TextureMailboxDeleterTest, Destroy) {
+  scoped_ptr<TextureMailboxDeleter> deleter(
+      new TextureMailboxDeleter(base::MessageLoopProxy::current()));
+
+  scoped_refptr<TestContextProvider> context_provider =
+      TestContextProvider::Create();
+  context_provider->BindToCurrentThread();
+
+  GLuint texture_id = 0u;
+  context_provider->ContextGL()->GenTextures(1, &texture_id);
+
+  EXPECT_TRUE(context_provider->HasOneRef());
+  EXPECT_EQ(1u, context_provider->TestContext3d()->NumTextures());
+
+  scoped_ptr<SingleReleaseCallback> cb =
+      deleter->GetReleaseCallback(context_provider, texture_id).Pass();
+  EXPECT_FALSE(context_provider->HasOneRef());
+  EXPECT_EQ(1u, context_provider->TestContext3d()->NumTextures());
+
+  // When the deleter is destroyed, it immediately drops its ref on the
+  // ContextProvider, and deletes the texture.
+  deleter = nullptr;
+  EXPECT_TRUE(context_provider->HasOneRef());
+  EXPECT_EQ(0u, context_provider->TestContext3d()->NumTextures());
+
+  // Run the scoped release callback before destroying it, but it won't do
+  // anything.
+  cb->Run(0, false);
+}
+
+}  // namespace
+}  // namespace cc