Utilize Position::IsEquivalent() in {Up,Down}streamIgnoringEditingBoundaries()

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

Index: third_party/WebKit/Source/core/editing/VisibleUnits.cpp
diff --git a/third_party/WebKit/Source/core/editing/VisibleUnits.cpp b/third_party/WebKit/Source/core/editing/VisibleUnits.cpp
index 01bbc7bce3b203a20be0edbfc68ef703c755ce39..8cc2f6b003abeab9bbd0d42982854c3ac6fb0099 100644
--- a/third_party/WebKit/Source/core/editing/VisibleUnits.cpp
+++ b/third_party/WebKit/Source/core/editing/VisibleUnits.cpp
@@ -2372,7 +2372,7 @@ template <typename Strategy>
 PositionTemplate<Strategy> DownstreamIgnoringEditingBoundaries(
     PositionTemplate<Strategy> position) {
   PositionTemplate<Strategy> last_position;
-  while (position != last_position) {
+  while (!position.IsEquivalent(last_position)) {
     last_position = position;
     position = MostForwardCaretPosition(position, kCanCrossEditingBoundary);
   }
@@ -2383,7 +2383,7 @@ template <typename Strategy>
 PositionTemplate<Strategy> UpstreamIgnoringEditingBoundaries(
     PositionTemplate<Strategy> position) {
   PositionTemplate<Strategy> last_position;
-  while (position != last_position) {
+  while (!position.IsEquivalent(last_position)) {
     last_position = position;
     position = MostBackwardCaretPosition(position, kCanCrossEditingBoundary);
   }