Remove StyleInvalidator machinery.

sky/engine/core/css/invalidation/StyleInvalidator.h

Index: sky/engine/core/css/invalidation/StyleInvalidator.h
diff --git a/sky/engine/core/css/invalidation/StyleInvalidator.h b/sky/engine/core/css/invalidation/StyleInvalidator.h
deleted file mode 100644
index 281bc39334fe288b04088833269d05dcc84453ac..0000000000000000000000000000000000000000
--- a/sky/engine/core/css/invalidation/StyleInvalidator.h
+++ /dev/null
@@ -1,97 +0,0 @@
-// 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.
-
-#ifndef StyleInvalidator_h
-#define StyleInvalidator_h
-
-#include "platform/heap/Handle.h"
-#include "wtf/HashMap.h"
-#include "wtf/Vector.h"
-
-namespace blink {
-
-class DescendantInvalidationSet;
-class Document;
-class Element;
-class Node;
-
-class StyleInvalidator {
-    DISALLOW_ALLOCATION();
-public:
-    StyleInvalidator();
-    ~StyleInvalidator();
-    void invalidate(Document&);
-    void scheduleInvalidation(PassRefPtr<DescendantInvalidationSet>, Element&);
-
-    // Clears all style invalidation state for the passed node.
-    void clearInvalidation(Node&);
-
-    void clearPendingInvalidations();
-
-    void trace(Visitor*);
-
-private:
-    struct RecursionData {
-        RecursionData()
-            : m_invalidateCustomPseudo(false)
-            , m_wholeSubtreeInvalid(false)
-            , m_treeBoundaryCrossing(false)
-        { }
-
-        void pushInvalidationSet(const DescendantInvalidationSet&);
-        bool matchesCurrentInvalidationSets(Element&);
-        bool hasInvalidationSets() const { return !wholeSubtreeInvalid() && m_invalidationSets.size(); }
-
-        bool wholeSubtreeInvalid() const { return m_wholeSubtreeInvalid; }
-        void setWholeSubtreeInvalid() { m_wholeSubtreeInvalid = true; }
-
-        bool treeBoundaryCrossing() const { return m_treeBoundaryCrossing; }
-
-        typedef Vector<const DescendantInvalidationSet*, 16> InvalidationSets;
-        InvalidationSets m_invalidationSets;
-        bool m_invalidateCustomPseudo;
-        bool m_wholeSubtreeInvalid;
-        bool m_treeBoundaryCrossing;
-    };
-
-    bool invalidate(Element&, RecursionData&);
-    bool invalidateChildren(Element&, RecursionData&);
-    bool checkInvalidationSetsAgainstElement(Element&, RecursionData&);
-
-    class RecursionCheckpoint {
-    public:
-        RecursionCheckpoint(RecursionData* data)
-            : m_prevInvalidationSetsSize(data->m_invalidationSets.size())
-            , m_prevInvalidateCustomPseudo(data->m_invalidateCustomPseudo)
-            , m_prevWholeSubtreeInvalid(data->m_wholeSubtreeInvalid)
-            , m_treeBoundaryCrossing(data->m_treeBoundaryCrossing)
-            , m_data(data)
-        { }
-        ~RecursionCheckpoint()
-        {
-            m_data->m_invalidationSets.remove(m_prevInvalidationSetsSize, m_data->m_invalidationSets.size() - m_prevInvalidationSetsSize);
-            m_data->m_invalidateCustomPseudo = m_prevInvalidateCustomPseudo;
-            m_data->m_wholeSubtreeInvalid = m_prevWholeSubtreeInvalid;
-            m_data->m_treeBoundaryCrossing = m_treeBoundaryCrossing;
-        }
-
-    private:
-        int m_prevInvalidationSetsSize;
-        bool m_prevInvalidateCustomPseudo;
-        bool m_prevWholeSubtreeInvalid;
-        bool m_treeBoundaryCrossing;
-        RecursionData* m_data;
-    };
-
-    typedef Vector<RefPtr<DescendantInvalidationSet> > InvalidationList;
-    typedef HashMap<RawPtr<Element>, OwnPtr<InvalidationList> > PendingInvalidationMap;
-
-    InvalidationList& ensurePendingInvalidationList(Element&);
-
-    PendingInvalidationMap m_pendingInvalidationMap;
-};
-
-} // namespace blink
-
-#endif // StyleInvalidator_h