Replace gfx::ScopedSkRegion with scoped_ptr<SkRegion>.

chrome/browser/ui/views/extensions/shell_window_views.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 "chrome/browser/ui/views/extensions/shell_window_views.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/common/extensions/draggable_region.h"
 #include "chrome/common/extensions/extension.h"
@@ skipping 508 matching lines @@
     path.lineTo(width, height - radius - 1);
     path.lineTo(width - radius - 1, height);
     path.lineTo(radius + 1, height);
     path.lineTo(0, height - radius - 1);
     path.close();
   }
   SetWindowRgn(web_contents()->GetNativeView(), path.CreateNativeRegion(), 1);
 
   SkRegion* rgn = new SkRegion;
   if (!window_->IsFullscreen()) {
-    if (draggable_region_.Get())
-      rgn->op(*draggable_region_.Get(), SkRegion::kUnion_Op);
+    if (draggable_region())
+      rgn->op(*draggable_region(), SkRegion::kUnion_Op);
     if (!window_->IsMaximized()) {
       if (frameless_)
         rgn->op(0, 0, width, kResizeInsideBoundsSize, SkRegion::kUnion_Op);
       rgn->op(0, 0, kResizeInsideBoundsSize, height, SkRegion::kUnion_Op);
       rgn->op(width - kResizeInsideBoundsSize, 0, width, height,
           SkRegion::kUnion_Op);
       rgn->op(0, height - kResizeInsideBoundsSize, width, height,
           SkRegion::kUnion_Op);
     }
   }
@@ skipping 29 matching lines @@
            regions.begin();
        iter != regions.end(); ++iter) {
     const extensions::DraggableRegion& region = *iter;
     draggable_region->op(region.bounds.x(),
                          region.bounds.y(),
                          region.bounds.right(),
                          region.bounds.bottom(),
                          SkRegion::kDifference_Op);
   }
 
-  draggable_region_.Set(draggable_region);
+  draggable_region_.reset(draggable_region);
   OnViewWasResized();
 }
 
 // static
 ShellWindow* ShellWindow::CreateImpl(Profile* profile,
                                      const extensions::Extension* extension,
                                      const GURL& url,
                                      const ShellWindow::CreateParams& params) {
   return new ShellWindowViews(profile, extension, url, params);
 }