Add Query() support to FileRef

ppapi/cpp/file_ref.cc

 // 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.
 
 #include "ppapi/cpp/file_ref.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/file_system.h"
 #include "ppapi/cpp/module_impl.h"
 
 
 namespace pp {
 
 namespace {
 
 template <> const char* interface_name<PPB_FileRef_1_0>() {
   return PPB_FILEREF_INTERFACE_1_0;
 }
 
+template <> const char* interface_name<PPB_FileRef_1_1>() {
+  return PPB_FILEREF_INTERFACE_1_1;
+}
+
 }  // namespace
 
 FileRef::FileRef(PP_Resource resource) : Resource(resource) {
 }
 
 FileRef::FileRef(PassRef, PP_Resource resource) : Resource(PASS_REF, resource) {
 }
 
 FileRef::FileRef(const FileSystem& file_system,
                  const char* path) {
@@ skipping 71 matching lines @@
 }
 
 int32_t FileRef::Rename(const FileRef& new_file_ref,
                         const CompletionCallback& cc) {
   if (!has_interface<PPB_FileRef_1_0>())
     return cc.MayForce(PP_ERROR_NOINTERFACE);
   return get_interface<PPB_FileRef_1_0>()->Rename(
       pp_resource(), new_file_ref.pp_resource(), cc.pp_completion_callback());
 }
 
+int32_t FileRef::Query(const CompletionCallbackWithOutput<PP_FileInfo>& cc) {
+  if (!has_interface<PPB_FileRef_1_1>())
+    return cc.MayForce(PP_ERROR_NOINTERFACE);
+  return get_interface<PPB_FileRef_1_1>()->Query(
+      pp_resource(), cc.output(), cc.pp_completion_callback());
+}
+
+
 }  // namespace pp