Refactor the URLResponseInfo to use new design

ppapi/c/ppb_file_io.h

 /* Copyright (c) 2012 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 ppb_file_io.idl modified Wed Feb 15 15:55:56 2012. */
+/* From ppb_file_io.idl modified Thu Oct 11 14:48:24 2012. */
 
 #ifndef PPAPI_C_PPB_FILE_IO_H_
 #define PPAPI_C_PPB_FILE_IO_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_file_info.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
@@ skipping 135 matching lines @@
    * PP_ERROR_FAILED will be returned if the file isn't opened, and
    * PP_ERROR_INPROGRESS will be returned if there is another operation pending.
    */
   int32_t (*Touch)(PP_Resource file_io,
                    PP_Time last_access_time,
                    PP_Time last_modified_time,
                    struct PP_CompletionCallback callback);
   /**
    * Read() reads from an offset in the file.  The size of the buffer must be
    * large enough to hold the specified number of bytes to read.  This function
-   * might perform a partial read.
+   * might perform a partial read, meaning all the requested bytes
+   * might not be returned, even if the end of the file has not been reached.
    *
    * @param[in] file_io A <code>PP_Resource</code> corresponding to a file
    * FileIO.
    * @param[in] offset The offset into the file.
    * @param[in] buffer The buffer to hold the specified number of bytes read.
    * @param[in] bytes_to_read The number of bytes to read from
    * <code>offset</code>.
    * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
    * completion of Read().
    *
@@ skipping 81 matching lines @@
   void (*Close)(PP_Resource file_io);
 };
 
 typedef struct PPB_FileIO_1_0 PPB_FileIO;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PPB_FILE_IO_H_ */