MacViews: Fix behavior of move and select commands when selection direction changes.

ui/views/controls/textfield/textfield_model.h

Index: ui/views/controls/textfield/textfield_model.h
diff --git a/ui/views/controls/textfield/textfield_model.h b/ui/views/controls/textfield/textfield_model.h
index 88a07b17e8ea8129a250da96f292d447dd4d4f2e..bc9c5d2878ee69247de1bd9216bf7371cb7ce4f3 100644
--- a/ui/views/controls/textfield/textfield_model.h
+++ b/ui/views/controls/textfield/textfield_model.h
@@ -118,9 +118,11 @@ class VIEWS_EXPORT TextfieldModel {
 
   // Moves the cursor, see RenderText for additional details.
   // The current composition text will be confirmed.
-  void MoveCursor(gfx::BreakType break_type,
-                  gfx::VisualCursorDirection direction,
-                  bool select);
+  void MoveCursor(
+      gfx::BreakType break_type,
+      gfx::VisualCursorDirection direction,
+      bool select,
+      gfx::SelectionReversedBehavior select_behavior = gfx::SELECTION_DEFAULT);
 
   // Updates the cursor to the specified selection model. Any composition text
   // will be confirmed, which may alter the specified selection range start.