ui: Remove SkCanvas methods from drag utils.

ui/views/drag_utils.cc

Index: ui/views/drag_utils.cc
diff --git a/ui/views/drag_utils.cc b/ui/views/drag_utils.cc
index 3a85cc8eb92851e60d8ebcbcb68a5b6a7077cdd0..3f27fb24a7021ecefeb65dfa5b0d19ec228e79c9 100644
--- a/ui/views/drag_utils.cc
+++ b/ui/views/drag_utils.cc
@@ -5,8 +5,6 @@
 #include "ui/views/drag_utils.h"
 
 #include "ui/base/layout.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/geometry/size.h"
 #include "ui/views/widget/widget.h"
 
 namespace views {
@@ -20,10 +18,4 @@ float ScaleFactorForDragFromWidget(const Widget* widget) {
   return device_scale;
 }
 
-gfx::Canvas* GetCanvasForDragImage(const Widget* widget,
-                                   const gfx::Size& canvas_size) {
-  float device_scale = ScaleFactorForDragFromWidget(widget);
-  return new gfx::Canvas(canvas_size, device_scale, false);
-}
-
 }  // namespace views