Reduce usage of VisibleSelection::setBase() and setExtent()

third_party/WebKit/Source/core/editing/GranularityStrategy.cpp

Index: third_party/WebKit/Source/core/editing/GranularityStrategy.cpp
diff --git a/third_party/WebKit/Source/core/editing/GranularityStrategy.cpp b/third_party/WebKit/Source/core/editing/GranularityStrategy.cpp
index 2b51dcb4ae864b06f008e1d38d382f6621c7c6ef..d6d932089cc42a96387ec97749dbc25b643f65f3 100644
--- a/third_party/WebKit/Source/core/editing/GranularityStrategy.cpp
+++ b/third_party/WebKit/Source/core/editing/GranularityStrategy.cpp
@@ -268,9 +268,11 @@ VisibleSelection DirectionGranularityStrategy::updateExtent(
 
   m_diffExtentPointFromExtentPosition =
       extentPoint + IntSize(m_offset, 0) - positionLocation(newSelectionExtent);
-  VisibleSelection newSelection = selection;
-  newSelection.setExtent(newSelectionExtent);
-  return newSelection;
+  return createVisibleSelection(
+      SelectionInDOMTree::Builder(selection.asSelection())
+          .collapse(selection.base())
+          .extend(newSelectionExtent.deepEquivalent())
+          .build());
 }
 
 }  // namespace blink