Oilpan: Enable oilpan for callback classes

Source/bindings/modules/v8/custom/V8SQLTransactionCustom.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 72 matching lines @@
                 TONATIVE_VOID(double, sqlValue, value->NumberValue());
                 sqlValues.append(SQLValue(sqlValue));
             } else {
                 TOSTRING_VOID(V8StringResource<>, sqlValue, value);
                 sqlValues.append(SQLValue(sqlValue));
             }
         }
     }
 
     SQLTransaction* transaction = V8SQLTransaction::toImpl(info.Holder());
-    OwnPtrWillBeRawPtr<SQLStatementCallback> callback = nullptr;
-    if (info.Length() > 2 && !isUndefinedOrNull(info[2])) {
+    SQLStatementCallback* callback;
+    if (!isUndefinedOrNull(info[2])) {
         if (!info[2]->IsFunction()) {
             exceptionState.throwDOMException(TypeMismatchError, "The 'callback' (2nd) argument provided is not a function.");
             exceptionState.throwIfNeeded();
             return;
         }
         callback = V8SQLStatementCallback::create(v8::Handle<v8::Function>::Cast(info[2]), ScriptState::current(info.GetIsolate()));
+    } else {
+        callback = nullptr;
     }
 
-    OwnPtrWillBeRawPtr<SQLStatementErrorCallback> errorCallback = nullptr;
-    if (info.Length() > 3 && !isUndefinedOrNull(info[3])) {
+    SQLStatementErrorCallback* errorCallback;
+    if (!isUndefinedOrNull(info[3])) {
         if (!info[3]->IsFunction()) {
             exceptionState.throwDOMException(TypeMismatchError, "The 'errorCallback' (3rd) argument provided is not a function.");
             exceptionState.throwIfNeeded();
             return;
         }
         errorCallback = V8SQLStatementErrorCallback::create(v8::Handle<v8::Function>::Cast(info[3]), ScriptState::current(info.GetIsolate()));
+    } else {
+        errorCallback = nullptr;
     }
 
-    transaction->executeSQL(statement, sqlValues, callback.release(), errorCallback.release(), exceptionState);
+    transaction->executeSQL(statement, sqlValues, callback, errorCallback, exceptionState);
     exceptionState.throwIfNeeded();
 }
 
 } // namespace blink