Fix rtl shelf overflow bubble

ui/views/window/non_client_view.cc

Index: ui/views/window/non_client_view.cc
diff --git a/ui/views/window/non_client_view.cc b/ui/views/window/non_client_view.cc
index ed9dc4ab6479ac3363b62989cbe3e200fcff8501..1cb6bc374c05f682dbe924dcbfbaad3fc1cb0ece 100644
--- a/ui/views/window/non_client_view.cc
+++ b/ui/views/window/non_client_view.cc
@@ -43,6 +43,7 @@ bool NonClientFrameView::GetClientMask(const gfx::Size& size,
 
 NonClientView::NonClientView()
     : client_view_(nullptr),
+      mirror_client_in_rtl_(true),
       overlay_view_(nullptr) {
   SetEventTargeter(
       std::unique_ptr<views::ViewTargeter>(new views::ViewTargeter(this)));
@@ -165,7 +166,14 @@ void NonClientView::Layout() {
   LayoutFrameView();
 
   // Then layout the ClientView, using those bounds.
-  client_view_->SetBoundsRect(frame_view_->GetBoundsForClientView());
+  gfx::Rect client_bounds = frame_view_->GetBoundsForClientView();
+
+  // RTL code will mirror the ClientView in the frame by default.  If this isn't
+  // desired, do a second mirror here to get the standard LTR position.
+  if (base::i18n::IsRTL() && !mirror_client_in_rtl_)
+    client_bounds.set_x(GetMirroredXForRect(client_bounds));
+
+  client_view_->SetBoundsRect(client_bounds);
 
   gfx::Path client_clip;
   if (frame_view_->GetClientMask(client_view_->size(), &client_clip))