Use references in RenderBlock and RenderBlockFlow methods

Source/core/rendering/line/BreakingContextInlineHeaders.h

Index: Source/core/rendering/line/BreakingContextInlineHeaders.h
diff --git a/Source/core/rendering/line/BreakingContextInlineHeaders.h b/Source/core/rendering/line/BreakingContextInlineHeaders.h
index 2330f454c510859f4938d049ab8dc395d12591c7..b69dbfe4d57ae63519e7ad2785f4e12616496a5a 100644
--- a/Source/core/rendering/line/BreakingContextInlineHeaders.h
+++ b/Source/core/rendering/line/BreakingContextInlineHeaders.h
@@ -216,7 +216,7 @@ inline void setStaticPositions(RenderBlockFlow* block, RenderBox* child)
         // container changing width.
         child->moveWithEdgeOfInlineContainerIfNecessary(child->isHorizontalWritingMode());
     }
-    block->updateStaticInlinePositionForChild(child, blockHeight);
+    block->updateStaticInlinePositionForChild(*child, blockHeight);
     child->layer()->setStaticBlockPosition(blockHeight);
 }
 
@@ -233,7 +233,7 @@ inline void BreakingContext::skipTrailingWhitespace(InlineIterator& iterator, co
         if (object->isOutOfFlowPositioned())
             setStaticPositions(m_block, toRenderBox(object));
         else if (object->isFloating())
-            m_block->insertFloatingObject(toRenderBox(object));
+            m_block->insertFloatingObject(*toRenderBox(object));
         iterator.increment();
     }
 }
@@ -342,7 +342,7 @@ inline void BreakingContext::handleOutOfFlowPositioned(Vector<RenderBox*>& posit
     RenderBox* box = toRenderBox(m_current.object());
     bool isInlineType = box->style()->isOriginalDisplayInlineType();
     if (!isInlineType) {
-        m_block->setStaticInlinePositionForChild(box, m_block->startOffsetForContent());
+        m_block->setStaticInlinePositionForChild(*box, m_block->startOffsetForContent());
     } else {
         // If our original display was an INLINE type, then we can go ahead
         // and determine our static y position now.
@@ -366,7 +366,7 @@ inline void BreakingContext::handleOutOfFlowPositioned(Vector<RenderBox*>& posit
 inline void BreakingContext::handleFloat()
 {
     RenderBox* floatBox = toRenderBox(m_current.object());
-    FloatingObject* floatingObject = m_block->insertFloatingObject(floatBox);
+    FloatingObject* floatingObject = m_block->insertFloatingObject(*floatBox);
     // check if it fits in the current line.
     // If it does, position it now, otherwise, position
     // it after moving to next line (in newLine() func)
@@ -461,7 +461,7 @@ inline void BreakingContext::handleReplaced()
 
     // Optimize for a common case. If we can't find whitespace after the list
     // item, then this is all moot.
-    LayoutUnit replacedLogicalWidth = m_block->logicalWidthForChild(replacedBox) + m_block->marginStartForChild(replacedBox) + m_block->marginEndForChild(replacedBox) + inlineLogicalWidth(m_current.object());
+    LayoutUnit replacedLogicalWidth = m_block->logicalWidthForChild(*replacedBox) + m_block->marginStartForChild(*replacedBox) + m_block->marginEndForChild(*replacedBox) + inlineLogicalWidth(m_current.object());
     if (m_current.object()->isListMarker()) {
         if (m_blockStyle->collapseWhiteSpace() && shouldSkipWhitespaceAfterStartObject(m_block, m_current.object(), m_lineMidpointState)) {
             // Like with inline flows, we start ignoring spaces to make sure that any