diff -r 000000000000 -r 6474c204b198 dom/plugins/base/nsPluginNativeWindowQt.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/plugins/base/nsPluginNativeWindowQt.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=2:tabstop=2:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ *  This file is the Qt implementation of plugin native window.
+ */
+
+#include "nsDebug.h"
+#include "nsPluginNativeWindow.h"
+#include "npapi.h"
+
+/**
+ * Qt implementation of plugin window
+ */
+class nsPluginNativeWindowQt : public nsPluginNativeWindow
+{
+public:
+  nsPluginNativeWindowQt();
+  virtual ~nsPluginNativeWindowQt();
+
+  virtual nsresult CallSetWindow(nsRefPtr<nsNPAPIPluginInstance> &aPluginInstance);
+private:
+
+  NPSetWindowCallbackStruct mWsInfo;
+};
+
+nsPluginNativeWindowQt::nsPluginNativeWindowQt() : nsPluginNativeWindow()
+{
+  //Initialize member variables
+#ifdef DEBUG
+  fprintf(stderr,"\n\n\nCreating plugin native window %p\n\n\n", (void *) this);
+#endif
+  window = nullptr;
+  x = 0;
+  y = 0;
+  width = 0;
+  height = 0;
+  memset(&clipRect, 0, sizeof(clipRect));
+  ws_info = &mWsInfo;
+  type = NPWindowTypeWindow;
+  mWsInfo.type = 0;
+#if defined(MOZ_X11)
+  mWsInfo.display = nullptr;
+  mWsInfo.visual = nullptr;
+  mWsInfo.colormap = 0;
+  mWsInfo.depth = 0;
+#endif
+}
+
+nsPluginNativeWindowQt::~nsPluginNativeWindowQt()
+{
+#ifdef DEBUG
+  fprintf(stderr,"\n\n\nDestoying plugin native window %p\n\n\n", (void *) this);
+#endif
+}
+
+nsresult PLUG_NewPluginNativeWindow(nsPluginNativeWindow **aPluginNativeWindow)
+{
+  NS_ENSURE_ARG_POINTER(aPluginNativeWindow);
+  *aPluginNativeWindow = new nsPluginNativeWindowQt();
+  return *aPluginNativeWindow ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+nsresult PLUG_DeletePluginNativeWindow(nsPluginNativeWindow * aPluginNativeWindow)
+{
+  NS_ENSURE_ARG_POINTER(aPluginNativeWindow);
+  nsPluginNativeWindowQt *p = (nsPluginNativeWindowQt *)aPluginNativeWindow;
+  delete p;
+  return NS_OK;
+}
+
+nsresult nsPluginNativeWindowQt::CallSetWindow(nsRefPtr<nsNPAPIPluginInstance> &aPluginInstance)
+{
+  if (aPluginInstance) {
+    if (type == NPWindowTypeWindow) {
+      return NS_ERROR_FAILURE;
+    } // NPWindowTypeWindow
+    aPluginInstance->SetWindow(this);
+  }
+  else if (mPluginInstance)
+    mPluginInstance->SetWindow(nullptr);
+
+  SetPluginInstance(aPluginInstance);
+  return NS_OK;
+}