Get rid of redundant parameter PositionIsOffsetInAnchor from PositionAlgorithm constructor

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 03eff0db2ed476a19c6ff94d34c04f0d759b7efc..003dc00ff061f7e925121196f1597312c39cfed3 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -2200,7 +2200,7 @@ void WebViewImpl::setFocus(bool enable)
                     // contentseditable DIVs. So we set the selection explicitly
                     // instead. Note that this has the side effect of moving the
                     // caret back to the beginning of the text.
-                    Position position(element, 0, Position::PositionIsOffsetInAnchor);
+                    Position position(element, 0);
                     localFrame->selection().setSelection(VisibleSelection(position, SEL_DEFAULT_AFFINITY));
                 }
             }