Make the file chooser use PP_ArrayOutput

ppapi/api/trusted/ppb_file_chooser_trusted.idl

Index: ppapi/api/trusted/ppb_file_chooser_trusted.idl
diff --git a/ppapi/api/trusted/ppb_file_chooser_trusted.idl b/ppapi/api/trusted/ppb_file_chooser_trusted.idl
index d921c81e570b9adcfb24e6ba7bc76cde911d579e..3d9aea0d222da6734f7f5510918268fc43386302 100644
--- a/ppapi/api/trusted/ppb_file_chooser_trusted.idl
+++ b/ppapi/api/trusted/ppb_file_chooser_trusted.idl
@@ -9,7 +9,8 @@
  */
 
 label Chrome {
-  M16 = 0.5
+  M16 = 0.5,
+  M20 = 0.6
 };
 
 [macro="PPB_FILECHOOSER_TRUSTED_INTERFACE"]
@@ -32,10 +33,37 @@ interface PPB_FileChooserTrusted {
   * @return PP_OK_COMPLETIONPENDING if request to show the dialog was
   * successful, another error code from pp_errors.h on failure.
   */
+  [deprecate=0.6]
   int32_t ShowWithoutUserGesture(
       [in] PP_Resource chooser,
       [in] PP_Bool save_as,
       [in] PP_Var suggested_file_name,
       [in] PP_CompletionCallback callback);
+
+ /**
+  * This function displays a previously created file chooser resource as a
+  * dialog box, prompting the user to choose a file or files to open, or a
+  * single file for saving. The callback is called with PP_OK on successful
+  * completion with a file (or files) selected or PP_ERROR_USERCANCEL if the
+  * user selected no file.
+  *
+  * @param[in] chooser The file chooser resource.
+  * @param[in] save_as A <code>PP_Bool</code> value indicating if this dialog
+  * is choosing a file for saving.
+  * @param[in] suggested_file_name If saving, the suggested name for the
+  * file, otherwise, null or undefined.
+  * @param[in] callback A <code>CompletionCallback</code> to be called after
+  * the user has closed the file chooser dialog.
+  *
+  * @return PP_OK_COMPLETIONPENDING if request to show the dialog was
+  * successful, another error code from pp_errors.h on failure.
+  */
+  [version=0.6]
+  int32_t ShowWithoutUserGesture(
+      [in] PP_Resource chooser,
+      [in] PP_Bool save_as,
+      [in] PP_Var suggested_file_name,
+      [in] PP_ArrayOutput output,
+      [in] PP_CompletionCallback callback);
 };