Convert zoom and widget to IDL

ppapi/c/dev/ppp_widget_dev.h

-/* Copyright (c) 2010 The Chromium Authors. All rights reserved.
+/* Copyright (c) 2011 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.
  */
+
+/* From dev/ppp_widget_dev.idl modified Fri Aug 26 17:59:12 2011. */
+
 #ifndef PPAPI_C_DEV_PPP_WIDGET_DEV_H_
 #define PPAPI_C_DEV_PPP_WIDGET_DEV_H_
 
 #include "ppapi/c/pp_instance.h"
+#include "ppapi/c/pp_macros.h"
+#include "ppapi/c/pp_point.h"
+#include "ppapi/c/pp_rect.h"
 #include "ppapi/c/pp_resource.h"
-#include "ppapi/c/pp_rect.h"
+#include "ppapi/c/pp_size.h"
+#include "ppapi/c/pp_stdint.h"
 
-// Interface for the plugin to implement when using a widget.
-#define PPP_WIDGET_DEV_INTERFACE "PPP_Widget(Dev);0.2"
+#define PPP_WIDGET_DEV_INTERFACE_0_2 "PPP_Widget(Dev);0.2"
+#define PPP_WIDGET_DEV_INTERFACE PPP_WIDGET_DEV_INTERFACE_0_2
 
+/**
+ * @file
+ * Implementation of the Widget interface.
+ */
+
+
+/**
+ * @addtogroup Interfaces
+ * @{
+ */
+/**
+ * The interface for reusing browser widgets.
+ */
 struct PPP_Widget_Dev {
-  // Informs the instance that the given rectangle needs to be repainted.
+  /**
+   * Informs the instance that the given rectangle needs to be repainted.
+   */
   void (*Invalidate)(PP_Instance instance,
                      PP_Resource widget,
                      const struct PP_Rect* dirty_rect);
 };
+/**
+ * @}
+ */
 
 #endif  /* PPAPI_C_DEV_PPP_WIDGET_DEV_H_ */