Attempt 2 at:...

views/widget/widget_gtk.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "views/widget/widget_gtk.h"
 
 #include "app/drag_drop_types.h"
 #include "app/gfx/path.h"
 #include "app/os_exchange_data.h"
 #include "app/os_exchange_data_provider_gtk.h"
@@ skipping 360 matching lines @@
     // TODO: need to constrain based on screen size.
     gtk_window_resize(gtk_window, bounds.width(), bounds.height());
     gtk_window_move(gtk_window, bounds.x(), bounds.y());
   }
 }
 
 void WidgetGtk::MoveAbove(Widget* widget) {
   NOTIMPLEMENTED();
 }
 
-void WidgetGtk::SetShape(const gfx::Path& shape) {
+void WidgetGtk::SetShape(gfx::NativeRegion region) {
   DCHECK(widget_);
   DCHECK(widget_->window);
 
-  gdk_window_shape_combine_region(widget_->window, NULL, 0, 0);
-  GdkRegion* region = shape.CreateGdkRegion();
   gdk_window_shape_combine_region(widget_->window, region, 0, 0);
   gdk_region_destroy(region);
 }
 
 void WidgetGtk::Close() {
   if (!widget_)
     return;  // No need to do anything.
 
   // Hide first.
   Hide();
@@ skipping 861 matching lines @@
   if (root_view)
     return root_view;
 
   // Enumerate all children and check if they have a RootView.
   gtk_container_foreach(GTK_CONTAINER(window), RootViewLocatorCallback,
                         static_cast<gpointer>(&root_view));
   return root_view;
 }
 
 }  // namespace views