Index: ui/views/widget/native_widget_mac.mm |
diff --git a/ui/views/widget/native_widget_mac.mm b/ui/views/widget/native_widget_mac.mm |
index e34f61d29a401810224eab5a67c3bf6cf9689f99..07e834a51ec92c5235c3af072b4015e2e27a4530 100644 |
--- a/ui/views/widget/native_widget_mac.mm |
+++ b/ui/views/widget/native_widget_mac.mm |
@@ -482,7 +482,7 @@ bool NativeWidgetMac::IsFullscreen() const { |
} |
void NativeWidgetMac::SetOpacity(unsigned char opacity) { |
- NOTIMPLEMENTED(); |
+ [GetNativeWindow() setAlphaValue:opacity / 255.0]; |
} |
void NativeWidgetMac::SetUseDragFrame(bool use_drag_frame) { |