Use references in RenderBlock and RenderBlockFlow methods

Source/core/rendering/RenderTable.cpp

Index: Source/core/rendering/RenderTable.cpp
diff --git a/Source/core/rendering/RenderTable.cpp b/Source/core/rendering/RenderTable.cpp
index a5a90e380223bfb62aa2484c3ef5cabc7342914f..8f134835bc182e4fca8b52f712aa278f65026dec 100644
--- a/Source/core/rendering/RenderTable.cpp
+++ b/Source/core/rendering/RenderTable.cpp
@@ -353,12 +353,12 @@ void RenderTable::layoutCaption(RenderTableCaption* caption)
     if (caption->needsLayout()) {
         // The margins may not be available but ensure the caption is at least located beneath any previous sibling caption
         // so that it does not mistakenly think any floats in the previous caption intrude into it.
-        caption->setLogicalLocation(LayoutPoint(caption->marginStart(), collapsedMarginBeforeForChild(caption) + logicalHeight()));
+        caption->setLogicalLocation(LayoutPoint(caption->marginStart(), collapsedMarginBeforeForChild(*caption) + logicalHeight()));
         // If RenderTableCaption ever gets a layout() function, use it here.
         caption->layoutIfNeeded();
     }
     // Apply the margins to the location now that they are definitely available from layout
-    LayoutUnit captionLogicalTop = collapsedMarginBeforeForChild(caption) + logicalHeight();
+    LayoutUnit captionLogicalTop = collapsedMarginBeforeForChild(*caption) + logicalHeight();
     if (view()->layoutState()->isPaginated()) {
         captionLogicalTop += caption->paginationStrut();
         caption->setPaginationStrut(0);
@@ -368,7 +368,7 @@ void RenderTable::layoutCaption(RenderTableCaption* caption)
     if (!selfNeedsLayout())
         caption->setMayNeedPaintInvalidation(true);
 
-    setLogicalHeight(logicalHeight() + caption->logicalHeight() + collapsedMarginBeforeForChild(caption) + collapsedMarginAfterForChild(caption));
+    setLogicalHeight(logicalHeight() + caption->logicalHeight() + collapsedMarginBeforeForChild(*caption) + collapsedMarginAfterForChild(*caption));
 }
 
 void RenderTable::distributeExtraLogicalHeight(int extraLogicalHeight)