Implements core logic for Pixel Canvas

ui/views/button_drag_utils.cc

Index: ui/views/button_drag_utils.cc
diff --git a/ui/views/button_drag_utils.cc b/ui/views/button_drag_utils.cc
index 064a133d2691b4f59520840cc3ad5e3a4af249b9..c898239ead0946da31c82d459815c6f77ba4da24 100644
--- a/ui/views/button_drag_utils.cc
+++ b/ui/views/button_drag_utils.cc
@@ -18,6 +18,7 @@
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/drag_utils.h"
+#include "ui/views/paint_info.h"
 #include "ui/views/widget/widget.h"
 #include "url/gurl.h"
 
@@ -83,7 +84,11 @@ void SetDragImage(const GURL& url,
   SkBitmap bitmap;
   float raster_scale = ScaleFactorForDragFromWidget(&widget);
   SkColor color = SK_ColorTRANSPARENT;
-  button.Paint(ui::CanvasPainter(&bitmap, size, raster_scale, color).context());
+  button.Paint(views::PaintInfo::CreateRootPaintInfo(
+      ui::CanvasPainter(&bitmap, size, raster_scale, color,
+                        widget.GetCompositor()->is_pixel_canvas())
+          .context(),
+      size));
   gfx::ImageSkia image(gfx::ImageSkiaRep(bitmap, raster_scale));
   data->provider().SetDragImage(image, press_point);
 }