Add Query() support to FileRef

ppapi/tests/test_utils.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.
 
 #ifndef PPAPI_TESTS_TEST_UTILS_H_
 #define PPAPI_TESTS_TEST_UTILS_H_
 
 #include <string>
 
 #include "ppapi/c/dev/ppb_testing_dev.h"
@@ skipping 172 matching lines @@
   TestCompletionCallbackWithOutput(PP_Instance instance,
                                    CallbackType callback_type) :
     TestCompletionCallback(instance, callback_type) {
   }
 
   pp::CompletionCallbackWithOutput<OutputT> GetCallbackWithOutput();
   operator pp::CompletionCallbackWithOutput<OutputT>() {
     return GetCallbackWithOutput();
   }
 
-  const OutputT& output() { return output_storage_.output(); }
+  OutputT output() {

[yzshen1, 2013/03/21 21:06:31]

I think this should be OutputT&. 

+    return pp::internal::CallbackOutputTraits<OutputT>::StorageToPluginArg(
+        output_storage_);
+  }
 
   typename pp::CompletionCallbackWithOutput<OutputT>::OutputStorageType
       output_storage_;
 };
 
 template <typename OutputT>
 pp::CompletionCallbackWithOutput<OutputT>
 TestCompletionCallbackWithOutput<OutputT>::GetCallbackWithOutput() {
   Reset();
   if (callback_type_ == PP_BLOCKING) {
@@ skipping 48 matching lines @@
 #error Please add support for your platform in ppapi/tests/test_utils.h
 #endif
 
 /* These are used to determine POSIX-like implementations vs Windows. */
 #if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
     defined(__OpenBSD__) || defined(__sun) || defined(__native_client__)
 #define PPAPI_POSIX 1
 #endif
 
 #endif  // PPAPI_TESTS_TEST_UTILS_H_