Remove StyleInvalidator machinery.

sky/engine/core/css/invalidation/DescendantInvalidationSetTest.cpp

-// 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 "config.h"
-#include "core/css/invalidation/DescendantInvalidationSet.h"
-
-#include <gtest/gtest.h>
-
-using namespace blink;
-
-namespace {
-
-// Once we setWholeSubtreeInvalid, we should not keep the HashSets.
-TEST(DescendantInvalidationSetTest, SubtreeInvalid_AddBefore)
-{
-    RefPtr<DescendantInvalidationSet> set = DescendantInvalidationSet::create();
-    set->addClass("a");
-    set->setWholeSubtreeInvalid();
-
-    ASSERT_TRUE(set->isEmpty());
-}
-
-// Don't (re)create HashSets if we've already setWholeSubtreeInvalid.
-TEST(DescendantInvalidationSetTest, SubtreeInvalid_AddAfter)
-{
-    RefPtr<DescendantInvalidationSet> set = DescendantInvalidationSet::create();
-    set->setWholeSubtreeInvalid();
-    set->addTagName("a");
-
-    ASSERT_TRUE(set->isEmpty());
-}
-
-// No need to keep the HashSets when combining with a wholeSubtreeInvalid set.
-TEST(DescendantInvalidationSetTest, SubtreeInvalid_Combine_1)
-{
-    RefPtr<DescendantInvalidationSet> set1 = DescendantInvalidationSet::create();
-    RefPtr<DescendantInvalidationSet> set2 = DescendantInvalidationSet::create();
-
-    set1->addId("a");
-    set2->setWholeSubtreeInvalid();
-
-    set1->combine(*set2);
-
-    ASSERT_TRUE(set1->wholeSubtreeInvalid());
-    ASSERT_TRUE(set1->isEmpty());
-}
-
-// No need to add HashSets from combining set when we already have wholeSubtreeInvalid.
-TEST(DescendantInvalidationSetTest, SubtreeInvalid_Combine_2)
-{
-    RefPtr<DescendantInvalidationSet> set1 = DescendantInvalidationSet::create();
-    RefPtr<DescendantInvalidationSet> set2 = DescendantInvalidationSet::create();
-
-    set1->setWholeSubtreeInvalid();
-    set2->addAttribute("a");
-
-    set1->combine(*set2);
-
-    ASSERT_TRUE(set1->wholeSubtreeInvalid());
-    ASSERT_TRUE(set1->isEmpty());
-}
-
-} // namespace