Add Vector2d classes that represent offsets, instead of using Point.

ui/views/controls/textfield/native_textfield_views.cc

Index: ui/views/controls/textfield/native_textfield_views.cc
diff --git a/ui/views/controls/textfield/native_textfield_views.cc b/ui/views/controls/textfield/native_textfield_views.cc
index 02e4c49cd59d3fb38c1387f70b322845694e5082..aa99882e0a582f4e4342ed90f8387dacb1ffa4a2 100644
--- a/ui/views/controls/textfield/native_textfield_views.cc
+++ b/ui/views/controls/textfield/native_textfield_views.cc
@@ -112,7 +112,7 @@ bool NativeTextfieldViews::OnMousePressed(const ui::MouseEvent& event) {
 
 bool NativeTextfieldViews::ExceededDragThresholdFromLastClickLocation(
     const ui::MouseEvent& event) {
-  gfx::Point location_delta = event.location().Subtract(last_click_location_);
+  gfx::Vector2d location_delta = event.location() - last_click_location_;
   return ExceededDragThreshold(location_delta.x(), location_delta.y());

[Peter Kasting, 2012/10/30 01:14:14]

This may be another function that makes sense to convert to taking a vector,
since we basically want to know "did this drag offset exceed the threshold" and
drag offsets are vectors.

[danakj, 2012/10/30 19:21:21]

Ya for sure. Changed the method. This was a really nice cleanup!

 }