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

ppapi/c/ppb_image_data.h

Index: ppapi/c/ppb_image_data.h
===================================================================
--- ppapi/c/ppb_image_data.h	(revision 72639)
+++ ppapi/c/ppb_image_data.h	(working copy)
@@ -13,12 +13,30 @@
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/pp_stdint.h"
 
+/**
+ * @file
+ * Defines the API ...
+ */
+
+/**
+ * @addtogroup Enums
+ * @{
+ */
+
 typedef enum {
   PP_IMAGEDATAFORMAT_BGRA_PREMUL,
   PP_IMAGEDATAFORMAT_RGBA_PREMUL
 } PP_ImageDataFormat;
+/**
+ * @}
+ */
+
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_ImageDataFormat, 4);
 
+/**
+ * @addtogroup Structs
+ * @{
+ */
 struct PP_ImageDataDesc {
   PP_ImageDataFormat format;
 
@@ -30,18 +48,18 @@
    */
   int32_t stride;
 };
+/**
+ * @}
+ */
+
 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_ImageDataDesc, 16);
 
 #define PPB_IMAGEDATA_INTERFACE "PPB_ImageData;0.3"
 
 /**
- * @file
- * Defines the API ...
- *
- * @addtogroup PPB
+ * @addtogroup Interfaces
  * @{
  */
-
 struct PPB_ImageData {
   /**
    * Returns the browser's preferred format for image data. This format will be
@@ -97,10 +115,9 @@
 
   void (*Unmap)(PP_Resource image_data);
 };
-
 /**
  * @}
- * End addtogroup PPB
  */
+
 #endif  /* PPAPI_C_PPB_IMAGE_DATA_H_ */