Avoid blocking while mapping an X11 window

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
index f592e1e24488f97af5100900cceced6a4667101a..949dc7855ca9cdcb534b3fb8d7fb8eddb4740e94 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
@@ -294,13 +294,11 @@ class VIEWS_EXPORT DesktopWindowTreeHostX11
 
   ui::X11AtomCache atom_cache_;
 
-  // Is the window mapped to the screen?
+  // Whether the window is mapped with respect to the X server.
   bool window_mapped_;
 
-  // Should we wait for an UnmapNotify before trying to remap the window?
-  // If |wait_for_unmap_| is true, we have sent an XUnmapWindow request to the
-  // server and have yet to receive an UnmapNotify.
-  bool wait_for_unmap_;
+  // Whether the window is visible with respect to Aura.
+  bool is_visible_;

[danakj, 2017/03/09 20:45:34]

I would name these more literally as the state they represent.

window_mapped_in_client_
window_mapped_in_server_

or something like that.

[Tom (Use chromium acct), 2017/03/10 01:29:57]

Done.

 
   // The bounds of |xwindow_|.
   gfx::Rect bounds_in_pixels_;