Add GetLiveVars to PPB_Testing_Dev. Fix leaks it uncovered.

ppapi/tests/test_file_io.cc

 // Copyright (c) 2011 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/tests/test_file_io.h"
 
 #include <string.h>
 
 #include <vector>
 
@@ skipping 91 matching lines @@
       return PP_ERROR_FAILED;
     write_offset += rv;
   }
 
   return PP_OK;
 }
 
 }  // namespace
 
 bool TestFileIO::Init() {
-  return InitTestingInterface() && EnsureRunningOverHTTP();
+  return CheckTestingInterface() && EnsureRunningOverHTTP();
 }
 
 void TestFileIO::RunTests(const std::string& filter) {
   RUN_TEST_FORCEASYNC_AND_NOT(Open, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(ReadWriteSetLength, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(TouchQuery, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(AbortCalls, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(ParallelReads, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(ParallelWrites, filter);
   RUN_TEST_FORCEASYNC_AND_NOT(NotAllowMixedReadWrite, filter);
@@ skipping 996 matching lines @@
     rv = callback.WaitForResult();
   if ((invalid_combination && rv == PP_OK) ||
       (!invalid_combination && ((rv == PP_OK) != create_if_doesnt_exist))) {
     return ReportOpenError(open_flags);
   }
 
   return std::string();
 }
 
 // TODO(viettrungluu): Test Close(). crbug.com/69457