Convert resources to take an instance key instead of an Instance*.

ppapi/tests/test_case.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_case.h"
 
 #include <sstream>
 
 #include "ppapi/tests/test_utils.h"
 #include "ppapi/tests/testing_instance.h"
@@ skipping 108 matching lines @@
     // Don't count test_object_ as a leak.
     if (test_object_.pp_var().type > PP_VARTYPE_DOUBLE)
       --leaked_vars;
 #endif
     if (leaked_vars) {
       std::ostringstream output;
       output << "Test leaked " << leaked_vars << " vars (printing at most "
              << kVarsToPrint <<"):<p>";
       errors += output.str();
       for (uint32_t i = 0; i < std::min(tracked_vars, kVarsToPrint); ++i) {
-        pp::Var leaked_var(pp::Var::PassRef(), vars[i]);
+        pp::Var leaked_var(pp::PASS_REF, vars[i]);
 #if (defined __native_client__)
         errors += leaked_var.DebugString() + "<p>";
 #else
         if (!(leaked_var == test_object_))
           errors += leaked_var.DebugString() + "<p>";
 #endif
       }
     }
   }
   return errors;
 }