Get rid of redundant parameter PositionIsOffsetInAnchor from PositionAlgorithm constructor

Source/core/editing/iterators/TextIterator.cpp

Index: Source/core/editing/iterators/TextIterator.cpp
diff --git a/Source/core/editing/iterators/TextIterator.cpp b/Source/core/editing/iterators/TextIterator.cpp
index 79cd9300c05fb4be633219a2f2e968dc9c1b2f6d..33293597fa273ea63802ec6530b22ae098f67b91 100644
--- a/Source/core/editing/iterators/TextIterator.cpp
+++ b/Source/core/editing/iterators/TextIterator.cpp
@@ -847,7 +847,7 @@ bool TextIteratorAlgorithm<Strategy>::shouldRepresentNodeOffsetZero()
     // and in that case we'll get null. We don't want to put in newlines at the start in that case.
     // The currPos.isNotNull() check is needed because positions in non-HTML content
     // (like SVG) do not have visible positions, and we don't want to emit for them either.
-    VisiblePosition startPos = VisiblePosition(Position(m_startContainer, m_startOffset, Position::PositionIsOffsetInAnchor), DOWNSTREAM);
+    VisiblePosition startPos = VisiblePosition(Position(m_startContainer, m_startOffset), DOWNSTREAM);
     VisiblePosition currPos = VisiblePosition(positionBeforeNode(m_node), DOWNSTREAM);
     return startPos.isNotNull() && currPos.isNotNull() && !inSameLine(startPos, currPos);
 }