Convert RenderBlockFlow code to use FloatingObject references

Source/core/layout/line/LineBreaker.cpp

Index: Source/core/layout/line/LineBreaker.cpp
diff --git a/Source/core/layout/line/LineBreaker.cpp b/Source/core/layout/line/LineBreaker.cpp
index 51567dc4cca11a6ff6c2c0db6d4ad4955241cd1a..453aca959bfc4b3cd50cde650b3875596fa83905 100644
--- a/Source/core/layout/line/LineBreaker.cpp
+++ b/Source/core/layout/line/LineBreaker.cpp
@@ -42,7 +42,7 @@ void LineBreaker::skipLeadingWhitespace(InlineBidiResolver& resolver, LineInfo&
                 lineInfo.incrementRunsFromLeadingWhitespace();
             }
         } else if (object->isFloating()) {
-            m_block->positionNewFloatOnLine(m_block->insertFloatingObject(*toLayoutBox(object)), lastFloatFromPreviousLine, lineInfo, width);
+            m_block->positionNewFloatOnLine(*(m_block->insertFloatingObject(*toLayoutBox(object))), lastFloatFromPreviousLine, lineInfo, width);
         }
         resolver.position().increment(&resolver);
     }