Move custom element code to core/dom/custom/

Source/core/dom/CustomElementCallbackDispatcher.h

Index: Source/core/dom/CustomElementCallbackDispatcher.h
diff --git a/Source/core/dom/CustomElementCallbackDispatcher.h b/Source/core/dom/CustomElementCallbackDispatcher.h
deleted file mode 100644
index 12301797dfbc4625e3a881711f8c070688a731ff..0000000000000000000000000000000000000000
--- a/Source/core/dom/CustomElementCallbackDispatcher.h
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer
- *    in the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name of Google Inc. nor the names of its contributors
- *    may be used to endorse or promote products derived from this
- *    software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef CustomElementCallbackDispatcher_h
-#define CustomElementCallbackDispatcher_h
-
-#include "wtf/Vector.h"
-
-namespace WebCore {
-
-class CustomElementCallbackQueue;
-class CustomElementCallbackScheduler;
-
-class CustomElementCallbackDispatcher {
-    WTF_MAKE_NONCOPYABLE(CustomElementCallbackDispatcher);
-public:
-    static CustomElementCallbackDispatcher& instance();
-
-    // This is stack allocated in many DOM callbacks. Make it cheap.
-    class CallbackDeliveryScope {
-    public:
-        CallbackDeliveryScope()
-            : m_savedElementQueueStart(s_elementQueueStart)
-        {
-            s_elementQueueStart = s_elementQueueEnd;
-        }
-
-        ~CallbackDeliveryScope()
-        {
-            if (s_elementQueueStart != s_elementQueueEnd)
-                processElementQueueAndPop();
-            s_elementQueueStart = m_savedElementQueueStart;
-        }
-
-    private:
-        size_t m_savedElementQueueStart;
-    };
-
-    // Returns true if more work may have to be performed at the
-    // checkpoint by this or other workers (for example, this work
-    // invoked author scripts)
-    bool dispatch();
-
-protected:
-    friend class CustomElementCallbackScheduler;
-    void enqueue(CustomElementCallbackQueue*);
-
-private:
-    CustomElementCallbackDispatcher()
-    {
-        // Add a null element as a sentinel. This makes it possible to
-        // identify elements queued when there is no
-        // CallbackDeliveryScope active. Also, if the processing stack
-        // is popped when empty, this sentinel will cause a null deref
-        // crash.
-        CustomElementCallbackQueue* sentinel = 0;
-        for (size_t i = 0; i < kNumSentinels; i++)
-            m_flattenedProcessingStack.append(sentinel);
-        ASSERT(s_elementQueueEnd == m_flattenedProcessingStack.size());
-    }
-
-    // The start of the element queue on the top of the processing
-    // stack. An offset into instance().m_flattenedProcessingStack.
-    static size_t s_elementQueueStart;
-
-    // The end of the element queue on the top of the processing
-    // stack. A cache of instance().m_flattenedProcessingStack.size().
-    static size_t s_elementQueueEnd;
-
-    static bool inCallbackDeliveryScope() { return s_elementQueueStart; }
-
-    typedef int ElementQueue;
-    static ElementQueue currentElementQueue() { return ElementQueue(s_elementQueueStart); }
-
-    static void processElementQueueAndPop();
-    void processElementQueueAndPop(size_t start, size_t end);
-
-    // The processing stack, flattened. Element queues lower in the
-    // stack appear toward the head of the vector. The first element
-    // is a null sentinel value.
-    static const size_t kNumSentinels = 1;
-    Vector<CustomElementCallbackQueue*> m_flattenedProcessingStack;
-};
-
-}
-
-#endif // CustomElementCallbackDispatcher_h