Draggable region support for frameless app window on Windows.

chrome/browser/ui/gtk/extensions/shell_window_gtk.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/gtk/extensions/shell_window_gtk.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
@@ skipping 133 matching lines @@
     gtk_window_deiconify(window_);
 }
 
 void ShellWindowGtk::SetBounds(const gfx::Rect& bounds) {
   gtk_window_move(window_, bounds.x(), bounds.y());
   // TODO(mihaip): Do we need the same workaround as BrowserWindowGtk::
   // SetWindowSize in order to avoid triggering fullscreen mode?
   gtk_window_resize(window_, bounds.width(), bounds.height());
 }
 
-void ShellWindowGtk::SetDraggableRegion(SkRegion* region) {
-  // TODO: implement
-}
-
 void ShellWindowGtk::FlashFrame(bool flash) {
   gtk_window_set_urgency_hint(window_, flash);
 }
 
 bool ShellWindowGtk::IsAlwaysOnTop() const {
   return false;
 }
 
 void ShellWindowGtk::ActiveWindowChanged(GdkWindow* active_window) {
   // Do nothing if we're in the process of closing the browser window.
@@ skipping 52 matching lines @@
   return content_thinks_its_fullscreen_;
 }
 
 // static
 ShellWindow* ShellWindow::CreateImpl(Profile* profile,
                                      const extensions::Extension* extension,
                                      const GURL& url,
                                      const ShellWindow::CreateParams& params) {
   return new ShellWindowGtk(profile, extension, url, params);
 }