Avoid markDirty when removing out-of-flow line boxes.

Source/core/rendering/InlineFlowBox.cpp

Index: Source/core/rendering/InlineFlowBox.cpp
diff --git a/Source/core/rendering/InlineFlowBox.cpp b/Source/core/rendering/InlineFlowBox.cpp
index d2ca4d8e105efb0c9c4e076f5cf15b717d8fdbdb..5a263d9ab993ecbce0e9aede687c746789aa5438 100644
--- a/Source/core/rendering/InlineFlowBox.cpp
+++ b/Source/core/rendering/InlineFlowBox.cpp
@@ -177,11 +177,11 @@ void InlineFlowBox::addToLine(InlineBox* child)
     checkConsistency();
 }
 
-void InlineFlowBox::removeChild(InlineBox* child)
+void InlineFlowBox::removeChild(InlineBox* child, MarkLineBoxes markDirty)
 {
     checkConsistency();
 
-    if (!isDirty())
+    if (markDirty == MarkLineBoxesDirty && !isDirty())
         dirtyLineBoxes();
 
     root().childRemoved(child);