Revert of Remove a bunch of NPAPI quirks and related support code

content/child/npapi/plugin_instance.h

 // 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.
 
 // TODO: Need to deal with NPAPI's NPSavedData.
 //       I haven't seen plugins use it yet.
 
 #ifndef CONTENT_CHILD_NPAPI_PLUGIN_INSTANCE_H_
 #define CONTENT_CHILD_NPAPI_PLUGIN_INSTANCE_H_
 
@@ skipping 58 matching lines @@
   //
   bool Start(const GURL& url,
              char** const param_names,
              char** const param_values,
              int param_count,
              bool load_manually);
 
   // NPAPI's instance identifier for this instance
   NPP npp() { return npp_; }
 
+  // Get/Set for the instance's window handle.
+  gfx::PluginWindowHandle window_handle() const { return window_handle_; }
+  void set_window_handle(gfx::PluginWindowHandle value) {
+    window_handle_ = value;
+  }
+
   // Get/Set whether this instance is transparent. This only applies to
   // windowless plugins.  Transparent plugins require that webkit paint the
   // background.
   // Default is true for all plugins other than Flash. For Flash, we default to
   // opaque since it always tells us if it's transparent during NPP_New.
   bool transparent() { return transparent_; }
   void set_transparent(bool value) { transparent_ = value; }
 
   // Get/Set the WebPlugin associated with this instance
   WebPlugin* webplugin() { return webplugin_; }
@@ skipping 125 matching lines @@
   // NOTE: Please dont change the ordering of the member variables
   // New members should be added after this padding array.
   // TODO(iyengar) : Disassemble the Realplayer ndata structure and look into
   // the possiblity of conforming to it (http://b/issue?id=936667). We
   // could also log a bug with Real, which would save the effort.
   uint8_t zero_padding_[96];
   scoped_refptr<PluginLib>                 plugin_;
   NPP                                      npp_;
   scoped_refptr<PluginHost>                host_;
   NPPluginFuncs*                           npp_functions_;
+  gfx::PluginWindowHandle                  window_handle_;
   bool                                     transparent_;
   WebPlugin*                               webplugin_;
   std::string                              mime_type_;
   bool                                     use_mozilla_user_agent_;
 #if defined(OS_MACOSX)
   NPDrawingModel                           drawing_model_;
   NPEventModel                             event_model_;
   gfx::Point                               plugin_origin_;
   gfx::Rect                                containing_window_frame_;
   NPCocoaEvent*                            currently_handled_event_;  // weak
@@ skipping 37 matching lines @@
 
  private:
   scoped_refptr<PluginInstance> instance_;
   DISALLOW_COPY_AND_ASSIGN(ScopedCurrentPluginEvent);
 };
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_NPAPI_PLUGIN_INSTANCE_H_