Rename all existing custom element classes as V0

third_party/WebKit/Source/core/dom/custom/CustomElementMicrotaskDispatcher.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 "core/dom/custom/CustomElementMicrotaskDispatcher.h"
-
-#include "bindings/core/v8/Microtask.h"
-#include "core/dom/custom/CustomElementCallbackQueue.h"
-#include "core/dom/custom/CustomElementMicrotaskImportStep.h"
-#include "core/dom/custom/CustomElementProcessingStack.h"
-#include "core/dom/custom/CustomElementScheduler.h"
-
-namespace blink {
-
-static const CustomElementCallbackQueue::ElementQueueId kMicrotaskQueueId = 0;
-
-CustomElementMicrotaskDispatcher::CustomElementMicrotaskDispatcher()
-    : m_hasScheduledMicrotask(false)
-    , m_phase(Quiescent)
-{
-}
-
-CustomElementMicrotaskDispatcher& CustomElementMicrotaskDispatcher::instance()
-{
-    DEFINE_STATIC_LOCAL(CustomElementMicrotaskDispatcher, instance, (new CustomElementMicrotaskDispatcher));
-    return instance;
-}
-
-void CustomElementMicrotaskDispatcher::enqueue(CustomElementCallbackQueue* queue)
-{
-    ensureMicrotaskScheduledForElementQueue();
-    queue->setOwner(kMicrotaskQueueId);
-    m_elements.append(queue);
-}
-
-void CustomElementMicrotaskDispatcher::ensureMicrotaskScheduledForElementQueue()
-{
-    DCHECK(m_phase == Quiescent || m_phase == Resolving);
-    ensureMicrotaskScheduled();
-}
-
-void CustomElementMicrotaskDispatcher::ensureMicrotaskScheduled()
-{
-    if (!m_hasScheduledMicrotask) {
-        Microtask::enqueueMicrotask(WTF::bind(&dispatch));
-        m_hasScheduledMicrotask = true;
-    }
-}
-
-void CustomElementMicrotaskDispatcher::dispatch()
-{
-    instance().doDispatch();
-}
-
-void CustomElementMicrotaskDispatcher::doDispatch()
-{
-    DCHECK(isMainThread());
-
-    DCHECK(m_phase == Quiescent);
-    DCHECK(m_hasScheduledMicrotask);
-    m_hasScheduledMicrotask = false;
-
-    // Finishing microtask work deletes all
-    // CustomElementCallbackQueues. Being in a callback delivery scope
-    // implies those queues could still be in use.
-    ASSERT_WITH_SECURITY_IMPLICATION(!CustomElementProcessingStack::inCallbackDeliveryScope());
-
-    m_phase = Resolving;
-
-    m_phase = DispatchingCallbacks;
-    for (const auto& element : m_elements) {
-        // Created callback may enqueue an attached callback.
-        CustomElementProcessingStack::CallbackDeliveryScope scope;
-        element->processInElementQueue(kMicrotaskQueueId);
-    }
-
-    m_elements.clear();
-    CustomElementScheduler::microtaskDispatcherDidFinish();
-    m_phase = Quiescent;
-}
-
-DEFINE_TRACE(CustomElementMicrotaskDispatcher)
-{
-    visitor->trace(m_elements);
-}
-
-} // namespace blink