[SPInvalidation] Fix PrePaintTreeWalk for multicol spanner

third_party/WebKit/Source/core/paint/PaintInvalidator.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/paint/PaintInvalidator.h"
 
 #include "core/editing/FrameSelection.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
@@ skipping 224 matching lines @@
       m_treeBuilderContext.current.transform =
           m_savedContext.transform->parent();
   }
 
   ~ScopedUndoFrameViewContentClipAndScroll() {
     m_treeBuilderContext.current = m_savedContext;
   }
 
  private:
   PaintPropertyTreeBuilderContext& m_treeBuilderContext;
-  PaintPropertyTreeBuilderContext::ContainingBlockContext m_savedContext;
+  PaintPropertyTreeBuilderContext::ContainerContext m_savedContext;
 };
 
 }  // namespace
 
 void PaintInvalidator::updateContext(const LayoutObject& object,
                                      PaintInvalidatorContext& context) {
   Optional<ScopedUndoFrameViewContentClipAndScroll>
       undoFrameViewContentClipAndScroll;
 
   if (object.isPaintInvalidationContainer()) {
@@ skipping 183 matching lines @@
   object.getMutableForPainting().clearPaintInvalidationFlags();
 }
 
 void PaintInvalidator::processPendingDelayedPaintInvalidations() {
   for (auto target : m_pendingDelayedPaintInvalidations)
     target->getMutableForPainting().setShouldDoFullPaintInvalidation(
         PaintInvalidationDelayedFull);
 }
 
 }  // namespace blink