Restrict the number of cases where we force the compositor to do a synchronous paint to resizing an…

ui/views/widget/desktop_aura/desktop_window_tree_host_win.h

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
index 933ecadec99e0192eb3fe65f73e4031f797de3f4..2929cebd627702d5329c64f8c376092887ee5a08 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
@@ -264,6 +264,14 @@ class VIEWS_EXPORT DesktopWindowTreeHostWin
 
   scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 
+  // This flag is set to true in cases where we need to force a synchronous
+  // paint via the compositor. Cases include restoring/resizing/maximizing the
+  // window. Defaults to false.
+  bool need_synchronous_paint_;
+
+  // Set to true if we are about to enter a sizing loop.
+  bool in_sizing_loop_;
+
   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostWin);
 };