views: support vertical-drag-to-end on textfields

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 9bdb48c834f4786cbcd4c90713b6782a217a1567..32cfd85f423b9ab4115842129120e63ae9486ca2 100644
--- a/ui/views/controls/textfield/textfield_model.h
+++ b/ui/views/controls/textfield/textfield_model.h
@@ -123,6 +123,10 @@ class VIEWS_EXPORT TextfieldModel {
   // Helper function to call MoveCursorTo on the TextfieldModel.
   bool MoveCursorTo(const gfx::Point& point, bool select);
 
+  // Helper functions to move the cursor to the start and end.
+  void MoveCursorToStart(bool select);

[tapted, 2016/04/06 23:29:38]

nit `select` is always in this code, so in Chrome's
don't-add-it-till-you-need-it methodology, it shouldn't be passed in yet

[Elly Fong-Jones, 2016/04/07 17:43:47]

Removed these methods.

+  void MoveCursorToEnd(bool select);
+
   // Selection related methods.
 
   // Returns the selected text.