Support for Adaptive Handle Orientation

ui/touch_selection/touch_selection_controller.h

Index: ui/touch_selection/touch_selection_controller.h
diff --git a/ui/touch_selection/touch_selection_controller.h b/ui/touch_selection/touch_selection_controller.h
index abc75b59ce7f588b603d2148bcba957cfc304eec..e25814e7c2397150a44f55fc502d4ffb34701789 100644
--- a/ui/touch_selection/touch_selection_controller.h
+++ b/ui/touch_selection/touch_selection_controller.h
@@ -47,7 +47,9 @@ class UI_TOUCH_SELECTION_EXPORT TouchSelectionController
   // Note that such updates will trigger handle updates only if preceded
   // by an appropriate call to allow automatic showing.
   void OnSelectionBoundsChanged(const SelectionBound& start,
-                                const SelectionBound& end);
+                                const SelectionBound& end,
+                                const gfx::SizeF& root_layer_size,
+                                const gfx::Vector2dF& offset);
 
   // Allows touch-dragging of the handle.
   // Returns true iff the event was consumed, in which case the caller should
@@ -117,6 +119,8 @@ class UI_TOUCH_SELECTION_EXPORT TouchSelectionController
   bool GetEndVisible() const;
   TouchHandle::AnimationStyle GetAnimationStyle(bool was_active) const;
 
+  void SetInvertedOrientation();
+
   void LogSelectionEnd();
 
   TouchSelectionControllerClient* const client_;
@@ -148,6 +152,10 @@ class UI_TOUCH_SELECTION_EXPORT TouchSelectionController
 
   bool temporarily_hidden_;
 
+  gfx::SizeF root_layer_size_;
+  gfx::Vector2dF content_offset_;
+  gfx::RectF viewport_rect_;
+
   base::TimeTicks selection_start_time_;
   // Whether a selection handle was dragged during the current 'selection
   // session' - i.e. since the current selection has been activated.