views: Make View::set_border() take a scoped_ptr<>.

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.
 
 #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first.
 
 #include "ui/views/view.h"
 
 #include <algorithm>
 #include <cmath>
@@ skipping 786 matching lines @@
   canvas->Translate(GetMirroredPosition().OffsetFromOrigin());
   canvas->Transform(GetTransform());
 
   PaintCommon(canvas);
 }
 
 void View::set_background(Background* b) {
   background_.reset(b);
 }
 
-void View::set_border(Border* b) {
-  border_.reset(b);
-}
+void View::SetBorder(scoped_ptr<Border> b) { border_ = b.Pass(); }
 
 ui::ThemeProvider* View::GetThemeProvider() const {
   const Widget* widget = GetWidget();
   return widget ? widget->GetThemeProvider() : NULL;
 }
 
 const ui::NativeTheme* View::GetNativeTheme() const {
   const Widget* widget = GetWidget();
   return widget ? widget->GetNativeTheme() : ui::NativeTheme::instance();
 }
@@ skipping 1567 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);
   widget->RunShellDrag(this, data, widget_location, drag_operations, source);
   // WARNING: we may have been deleted.
   return true;
 }
 
 }  // namespace views