Remove windowed NPAPI code

content/common/webplugin_geometry.h

 // Copyright (c) 2013 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.
 
 #ifndef CONTENT_COMMON_WEBPLUGIN_GEOMETRY_H_
 #define CONTENT_COMMON_WEBPLUGIN_GEOMETRY_H_
 
 #include <vector>
 
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace content {
 
 // Describes the new location for a plugin window.
 struct WebPluginGeometry {
   WebPluginGeometry();
   WebPluginGeometry(const WebPluginGeometry& other);
   ~WebPluginGeometry();
 
   bool Equals(const WebPluginGeometry& rhs) const;
 
-  // On Windows, this is the plugin window in the plugin process.
-  // On X11, this is the XID of the plugin-side GtkPlug containing the
-  // GtkSocket hosting the actual plugin window.
-  //
-  // On Mac OS X, all of the plugin types are currently "windowless"
-  // (window == 0) except for the special case of the GPU plugin,
-  // which currently performs rendering on behalf of the Pepper 3D API
-  // and WebGL. The GPU plugin uses a simple integer for the
-  // PluginWindowHandle which is used to map to a side data structure
-  // containing information about the plugin. Soon this plugin will be
-  // generalized, at which point this mechanism will be rethought or
-  // removed.
-  gfx::PluginWindowHandle window;
   gfx::Rect window_rect;
   // Clip rect (include) and cutouts (excludes), relative to
   // window_rect origin.
   gfx::Rect clip_rect;
   std::vector<gfx::Rect> cutout_rects;
   bool rects_valid;
   bool visible;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_WEBPLUGIN_GEOMETRY_H_