Provide a safer URLLoader ReadResponseBody API

ppapi/cpp/file_io.h

Index: ppapi/cpp/file_io.h
diff --git a/ppapi/cpp/file_io.h b/ppapi/cpp/file_io.h
index bf2c85701256cd1486545a711d43f6ef7b7a60c0..0afda17ed9f1ac52aafe2f914a2a7eaf3cd0c87f 100644
--- a/ppapi/cpp/file_io.h
+++ b/ppapi/cpp/file_io.h
@@ -153,14 +153,11 @@ class FileIO : public Resource {
   /// provided so that output will be stored in its allocated buffer.  This
   /// function might perform a partial read.
   ///
-  /// @param[in] file_io A <code>PP_Resource</code> corresponding to a file
-  /// FileIO.
   /// @param[in] offset The offset into the file.
   /// @param[in] max_read_length The maximum number of bytes to read from
   /// <code>offset</code>.
-  /// @param[in] output A <code>PP_ArrayOutput</code> to hold the output data.
-  /// @param[in] callback A <code>PP_CompletionCallback</code> to be called upon
-  /// completion of Read().
+  /// @param[in] cc A <code>CompletionCallbackWithOutput</code> to hold a
+  /// PP_ArrayOutput for output, and to be called upon completion of Read().
   ///
   /// @return The number of bytes read or an error code from
   /// <code>pp_errors.h</code>. If the return value is 0, then end-of-file was