Move adjustForUnsplittableChild() from RenderBlock to RenderBlockFlow.

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index 9336cc6fbeec17527009af76124585cd949234e9..5a4baccfd4a7de3eb22106c2d8c8a10165031ba2 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -4514,25 +4514,6 @@ LayoutUnit RenderBlock::pageRemainingLogicalHeightForOffset(LayoutUnit offset, P
     return flowThread->pageRemainingLogicalHeightForOffset(offset, pageBoundaryRule);
 }
 
-LayoutUnit RenderBlock::adjustForUnsplittableChild(RenderBox* child, LayoutUnit logicalOffset, bool includeMargins)
-{
-    bool checkColumnBreaks = view()->layoutState()->isPaginatingColumns() || flowThreadContainingBlock();
-    bool checkPageBreaks = !checkColumnBreaks && view()->layoutState()->pageLogicalHeight();
-    bool isUnsplittable = child->isUnsplittableForPagination() || (checkColumnBreaks && child->style()->columnBreakInside() == PBAVOID)
-        || (checkPageBreaks && child->style()->pageBreakInside() == PBAVOID);
-    if (!isUnsplittable)
-        return logicalOffset;
-    LayoutUnit childLogicalHeight = logicalHeightForChild(child) + (includeMargins ? marginBeforeForChild(child) + marginAfterForChild(child) : LayoutUnit());
-    LayoutUnit pageLogicalHeight = pageLogicalHeightForOffset(logicalOffset);
-    updateMinimumPageHeight(logicalOffset, childLogicalHeight);
-    if (!pageLogicalHeight || childLogicalHeight > pageLogicalHeight)
-        return logicalOffset;
-    LayoutUnit remainingLogicalHeight = pageRemainingLogicalHeightForOffset(logicalOffset, ExcludePageBoundary);
-    if (remainingLogicalHeight < childLogicalHeight)
-        return logicalOffset + remainingLogicalHeight;
-    return logicalOffset;
-}
-
 void RenderBlock::setPageBreak(LayoutUnit offset, LayoutUnit spaceShortage)
 {
     if (RenderFlowThread* flowThread = flowThreadContainingBlock())