Clean up CompositorPendingAnimations inclusion.

third_party/WebKit/Source/core/dom/IntersectionObservation.cpp

 // Copyright 2016 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/IntersectionObservation.h"
 
 #include "core/dom/ElementRareData.h"
 #include "core/dom/IntersectionObserver.h"
 #include "core/frame/FrameView.h"
 #include "core/layout/LayoutBox.h"
 #include "core/layout/LayoutPart.h"
 #include "core/layout/LayoutText.h"
 #include "core/layout/LayoutView.h"
 #include "core/paint/PaintLayer.h"
 
 namespace blink {
 
 IntersectionObservation::IntersectionObservation(IntersectionObserver& observer, Element& target, bool shouldReportRootBounds)
     : m_observer(observer)
-    , m_target(target.ensureIntersectionObserverData().createWeakPtr(&target))
+    , m_target(&target)
     , m_shouldReportRootBounds(shouldReportRootBounds)
     , m_lastThresholdIndex(0)
 {
 }
 
-Element* IntersectionObservation::target() const
-{
-    return toElement(m_target.get());
-}
-
 void IntersectionObservation::applyRootMargin(LayoutRect& rect) const
 {
     if (m_shouldReportRootBounds)
         m_observer->applyRootMargin(rect);
 }
 
 void IntersectionObservation::initializeGeometry(IntersectionGeometry& geometry) const
 {
     initializeTargetRect(geometry.targetRect);
     geometry.intersectionRect = geometry.targetRect;
@@ skipping 200 matching lines @@
     m_observer.clear();
 }
 
 DEFINE_TRACE(IntersectionObservation)
 {
     visitor->trace(m_observer);
     visitor->trace(m_target);
 }
 
 } // namespace blink