Removed Doxygen groupings by ppb_, pp_, and ppp_. Added grouping by construct...

ppapi/c/pp_rect.h

 /* Copyright (c) 2010 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 PPAPI_C_PP_RECT_H_
 #define PPAPI_C_PP_RECT_H_
 
 /**
  * @file
  * Defines the API ...
- *
- * @addtogroup PP
- * @{
  */
 
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/pp_stdint.h"
 
+/**
+ * @addtogroup Structs
+ * @{
+ */
 struct PP_Rect {
   struct PP_Point point;
   struct PP_Size size;
 };
+/**
+ * @}
+ */
+
 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_Rect, 16);
 
+/**
+ * @addtogroup Functions
+ * @{
+ */
 PP_INLINE struct PP_Rect PP_MakeRectFromXYWH(int32_t x, int32_t y,
                                              int32_t w, int32_t h) {
   struct PP_Rect ret;
   ret.point.x = x;
   ret.point.y = y;
   ret.size.width = w;
   ret.size.height = h;
   return ret;
 }
-
 /**
  * @}
- * End addtogroup PP
  */
 #endif  /* PPAPI_C_PP_RECT_H_ */