Refactor the URLResponseInfo to use new design

ppapi/c/ppb_file_io.h

Index: ppapi/c/ppb_file_io.h
diff --git a/ppapi/c/ppb_file_io.h b/ppapi/c/ppb_file_io.h
index 4b9db95a0a382fd65fcb8db0eb8a1bcac0ced39b..35872570451930e8f2d1989dac1ab93638f2a9b7 100644
--- a/ppapi/c/ppb_file_io.h
+++ b/ppapi/c/ppb_file_io.h
@@ -3,7 +3,7 @@
  * 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_
@@ -159,7 +159,8 @@ struct PPB_FileIO_1_0 {
   /**
    * 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.