Add PageBoundaryRule parameter to columnSetAtBlockOffset().

third_party/WebKit/Source/core/layout/FragmentainerIterator.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/layout/FragmentainerIterator.h"
 
 #include "core/layout/LayoutMultiColumnSet.h"
 
 namespace blink {
 
@@ skipping 10 matching lines @@
 
     if (m_flowThread.isHorizontalWritingMode()) {
         m_logicalTopInFlowThread = boundsInFlowThread.y();
         m_logicalBottomInFlowThread = boundsInFlowThread.maxY();
     } else {
         m_logicalTopInFlowThread = boundsInFlowThread.x();
         m_logicalBottomInFlowThread = boundsInFlowThread.maxX();
     }
 
     // Jump to the first interesting column set.
-    m_currentColumnSet = flowThread.columnSetAtBlockOffset(m_logicalTopInFlowThread);
+    m_currentColumnSet = flowThread.columnSetAtBlockOffset(m_logicalTopInFlowThread, LayoutBox::AssociateWithLatterPage);
     if (!m_currentColumnSet || m_currentColumnSet->logicalTopInFlowThread() >= m_logicalBottomInFlowThread) {
         setAtEnd();
         return;
     }
     // Then find the first interesting fragmentainer group.
     m_currentFragmentainerGroupIndex = m_currentColumnSet->fragmentainerGroupIndexAtFlowThreadOffset(m_logicalTopInFlowThread);
 
     // Now find the first and last fragmentainer we're interested in. We'll also clip against
     // the clip rect here. In case the clip rect doesn't intersect with any of the
     // fragmentainers, we have to move on to the next fragmentainer group, and see if we find
@@ skipping 86 matching lines @@
     m_paginationOffset = group.flowThreadTranslationAtOffset(fragmentainerLogicalTopInFlowThread, LayoutBox::AssociateWithLatterPage, CoordinateSpaceConversion::Visual);
 
     // Set the overflow clip rect that corresponds to the fragmentainer.
     m_clipRectInFlowThread = group.flowThreadPortionOverflowRectAt(m_currentFragmentainerIndex);
 
     // Flip it into a physical rectangle.
     m_flowThread.flipForWritingMode(m_clipRectInFlowThread);
 }
 
 } // namespace blink