Add gesture support in views::ResizeArea

ui/views/controls/resize_area_delegate.h

Index: ui/views/controls/resize_area_delegate.h
diff --git a/ui/views/controls/resize_area_delegate.h b/ui/views/controls/resize_area_delegate.h
index cc5e133d8ccf899614e09f905d307192052bc89d..c240ad9fe43323091ed41d2c518d7a7c8b25321d 100644
--- a/ui/views/controls/resize_area_delegate.h
+++ b/ui/views/controls/resize_area_delegate.h
@@ -16,7 +16,7 @@ class ResizeAreaDelegate {
   // positive (depending on direction of dragging and flips according to
   // locale directionality: dragging to the left in LTR locales gives negative
   // |resize_amount| but positive amount for RTL). |done_resizing| is true if
-  // the user has released the mouse.
+  // the user has released the mouse/finger.

[sadrul, 2017/04/07 03:43:05]

I would change this to ".. has released the pointer (e.g. mouse, stylus, touch
etc.)"

[tdanderson, 2017/04/07 20:27:43]

Done.

   virtual void OnResize(int resize_amount, bool done_resizing) = 0;
 
  protected: