Minor doc changes. Mostly commented out TODO and {PENDING notes that engineer...

ppapi/c/ppb_class.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_PPB_CLASS_H_
 #define PPAPI_C_PPB_CLASS_H_
 
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/c/ppb_var.h"
 
 #define PPB_CLASS_INTERFACE "PPB_Class;0.4"
 
 /**
  * @file
- * Defines the PPB_Class struct.
+ * This file defines the PPB_Class struct which is an interface for
+ * implementing JavaScript-accessible objects.
  *
  */
 
 /**
  * @addtogroup Typedefs
  * @{
  */
 
 /**
  * Function callback.
@@ skipping 115 matching lines @@
                                void* native_ptr,
                                struct PP_Var* exception);
 };
 /**
  * @}
  */
 
 
 #endif  /* PPAPI_C_PPP_CLASS_H_ */