gtk: Move ScopedRegion into scoped_region.{h,cc}.

ui/views/view.cc

 // Copyright (c) 2012 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 "ui/views/view.h"
 
 #include <algorithm>
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 20 matching lines @@
 #include "ui/views/widget/native_widget_private.h"
 #include "ui/views/widget/root_view.h"
 #include "ui/views/widget/tooltip_manager.h"
 #include "ui/views/widget/widget.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_gdi_object.h"
 #include "ui/views/accessibility/native_view_accessibility_win.h"
 #endif
 #if defined(TOOLKIT_USES_GTK)
-#include "ui/base/gtk/scoped_handle_gtk.h"
+#include "ui/base/gtk/scoped_region.h"
 #endif
 
 namespace {
 
 // Whether to use accelerated compositing when necessary (e.g. when a view has a
 // transformation).
 #if defined(USE_AURA)
 bool use_acceleration_when_possible = true;
 #else
 bool use_acceleration_when_possible = false;
@@ skipping 2019 matching lines @@
 
   // Message the RootView to do the drag and drop. That way if we're removed
   // the RootView can detect it and avoid calling us back.
   gfx::Point widget_location(event.location());
   ConvertPointToWidget(this, &widget_location);
   GetWidget()->RunShellDrag(this, data, widget_location, drag_operations);
 #endif  // !defined(OS_MACOSX)
 }
 
 }  // namespace views