Use references in calculateMinimumPageHeight() for non-optional arguments

[WebKit-https.git] / Source / WebCore / rendering / RenderBlockFlow.cpp

diff --git a/Source/WebCore/rendering/RenderBlockFlow.cpp b/Source/WebCore/rendering/RenderBlockFlow.cpp
index 041acf706a4ad9a568967fbb32cb1edf47539390..6d4937243aa994da28261dd26ec96103c0960812 100644 (file)
--- a/Source/WebCore/rendering/RenderBlockFlow.cpp
+++ b/Source/WebCore/rendering/RenderBlockFlow.cpp
@@ -1588,13 +1588,13 @@ LayoutUnit RenderBlockFlow::adjustBlockChildForPagination(LayoutUnit logicalTopA
     return result;
 }
 
-static inline LayoutUnit calculateMinimumPageHeight(RenderStyle* renderStyle, RootInlineBox* lastLine, LayoutUnit lineTop, LayoutUnit lineBottom)
+static inline LayoutUnit calculateMinimumPageHeight(RenderStyle& renderStyle, RootInlineBox& lastLine, LayoutUnit lineTop, LayoutUnit lineBottom)
 {
     // We may require a certain minimum number of lines per page in order to satisfy
     // orphans and widows, and that may affect the minimum page height.
-    unsigned lineCount = std::max<unsigned>(renderStyle->hasAutoOrphans() ? 1 : renderStyle->orphans(), renderStyle->hasAutoWidows() ? 1 : renderStyle->widows());
+    unsigned lineCount = std::max<unsigned>(renderStyle.hasAutoOrphans() ? 1 : renderStyle.orphans(), renderStyle.hasAutoWidows() ? 1 : renderStyle.widows());
     if (lineCount > 1) {
-        RootInlineBox* line = lastLine;
+        RootInlineBox* line = &lastLine;
         for (unsigned i = 1; i < lineCount && line->prevRootBox(); i++)
             line = line->prevRootBox();
 
@@ -1632,7 +1632,7 @@ void RenderBlockFlow::adjustLinePositionForPagination(RootInlineBox* lineBox, La
     LayoutUnit logicalOffset = std::min(lineBox->lineTopWithLeading(), logicalVisualOverflow.y());
     LayoutUnit logicalBottom = std::max(lineBox->lineBottomWithLeading(), logicalVisualOverflow.maxY());
     LayoutUnit lineHeight = logicalBottom - logicalOffset;
-    updateMinimumPageHeight(logicalOffset, calculateMinimumPageHeight(&style(), lineBox, logicalOffset, logicalBottom));
+    updateMinimumPageHeight(logicalOffset, calculateMinimumPageHeight(style(), *lineBox, logicalOffset, logicalBottom));
     logicalOffset += delta;
     lineBox->setPaginationStrut(0);
     lineBox->setIsFirstAfterPageBreak(false);