aura: Fix popup window positioning.

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index 39ff64a863d11f5a0cad44a8cde2a32f3eba377a..fe072371cf935de41d05e89b99a5d2d0315a2625 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -128,7 +128,14 @@ void RenderWidgetHostViewAura::InitAsPopup(
 
   window_->SetParent(NULL);
   Show();
-  SetBounds(pos);
+
+  // |pos| is in desktop coordinates. So convert it to
+  // |popup_parent_host_view_|'s coordinates first.
+  gfx::Point origin = pos.origin();
+  aura::Window::ConvertPointToWindow(
+      aura::Desktop::GetInstance(),
+      popup_parent_host_view_->window_, &origin);
+  SetBounds(gfx::Rect(origin, pos.size()));
 }
 
 void RenderWidgetHostViewAura::InitAsFullscreen(