cc: 9patch: fix shadow scaling issue

ui/compositor/layer.cc

Index: ui/compositor/layer.cc
diff --git a/ui/compositor/layer.cc b/ui/compositor/layer.cc
index 8c8a29195c529640c22758434febfdc5e3b7ba7f..1d0556aad42df190acb41091f4af1632c1dff93a 100644
--- a/ui/compositor/layer.cc
+++ b/ui/compositor/layer.cc
@@ -626,6 +626,11 @@ void Layer::UpdateNinePatchLayerAperture(const gfx::Rect& aperture_in_dip) {
   nine_patch_layer_->SetAperture(aperture_in_pixel);
 }
 
+void Layer::UpdateNinePatchLayerBorder(const gfx::Rect& border) {
+  DCHECK(type_ == LAYER_NINE_PATCH && nine_patch_layer_.get());
+  nine_patch_layer_->SetBorder(border);
+}
+
 void Layer::UpdateNinePatchOcclusion(const gfx::Rect& occlusion) {
   DCHECK(type_ == LAYER_NINE_PATCH && nine_patch_layer_.get());
   nine_patch_layer_->SetLayerOcclusion(occlusion);