Remove windowed NPAPI code

content/common/webplugin_geometry.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 "content/common/webplugin_geometry.h"
 
 namespace content {
 
 WebPluginGeometry::WebPluginGeometry()
-    : window(gfx::kNullPluginWindow),
-      rects_valid(false),
+    : rects_valid(false),
       visible(false) {
 }
 
 WebPluginGeometry::WebPluginGeometry(const WebPluginGeometry& other) = default;
 
 WebPluginGeometry::~WebPluginGeometry() {
 }
 
 bool WebPluginGeometry::Equals(const WebPluginGeometry& rhs) const {
-  return window == rhs.window &&
-         window_rect == rhs.window_rect &&
+  return window_rect == rhs.window_rect &&
          clip_rect == rhs.clip_rect &&
          cutout_rects == rhs.cutout_rects &&
          rects_valid == rhs.rects_valid &&
          visible == rhs.visible;
 }
 
 }  // namespace content