Turn RootWindowController Menus Async

ui/views/widget/native_widget_aura.cc

Index: ui/views/widget/native_widget_aura.cc
diff --git a/ui/views/widget/native_widget_aura.cc b/ui/views/widget/native_widget_aura.cc
index 84c8d0539c06a4fca916f0d37d87c8ec2c23281c..4628de8d2345fbccdd1e6c6cfab311d34b5923da 100644
--- a/ui/views/widget/native_widget_aura.cc
+++ b/ui/views/widget/native_widget_aura.cc
@@ -10,6 +10,7 @@
 #include "build/build_config.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/aura_constants.h"
+#include "ui/aura/client/capture_client.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/client/focus_client.h"
 #include "ui/aura/client/screen_position_client.h"
@@ -1185,5 +1186,15 @@ gfx::FontList NativeWidgetPrivate::GetWindowTitleFontList() {
 #endif
 }
 
+// static
+gfx::NativeView NativeWidgetPrivate::GetGlobalCapture(
+    gfx::NativeView native_view) {
+  aura::client::CaptureClient* capture_client =
+      aura::client::GetCaptureClient(native_view->GetRootWindow());
+  if (!capture_client)
+    return nullptr;
+  return capture_client->GetGlobalCaptureWindow();
+}
+
 }  // namespace internal
 }  // namespace views