Mostly minor changes such as adding <code></code> around elements, a little rewriting, and a few ...

ppapi/c/pp_size.h

 /* 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.
  */
 #ifndef PPAPI_C_PP_SIZE_H_
 #define PPAPI_C_PP_SIZE_H_
 
 /**
  * @file
- * This file defines the width and height of a 2 dimensional rectangle.
+ * This file defines the width and height of a 2D rectangle.
  */
 
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_stdint.h"
 
 /**
  * @addtogroup Structs
  * @{
  */
 
 /**
- * The PP_Size struct contains the size of a 2D rectangle.
+ * The <code>PP_Size</code> struct contains the size of a 2D rectangle.
  */
 struct PP_Size {
   /** This value represents the width of the rectangle. */
   int32_t width;
   /** This value represents the height of the rectangle. */
   int32_t height;
 };
 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_Size, 8);
 /**
  * @}
  */
 
 /**
  * @addtogroup Functions
  * @{
  */
 
 /**
- * PP_MakeSize() creates a PP_Size given a width and height as int32_t values.
+ * PP_MakeSize() creates a <code>PP_Size</code> given a width and height as
+ * int32_t values.
+ *
  * @param[in] w An int32_t value representing a width.
  * @param[in] h An int32_t value representing a height.
- * @return A PP_Size structure.
+ *
+ * @return A <code>PP_Size</code> structure.
  */
 PP_INLINE struct PP_Size PP_MakeSize(int32_t w, int32_t h) {
   struct PP_Size ret;
   ret.width = w;
   ret.height = h;
   return ret;
 }
 /**
  * @}
  */
 #endif  /* PPAPI_C_PP_SIZE_H_ */