IndexedDB: Replace 0 with nullptr where appropriate

Source/modules/indexeddb/IDBKeyRange.cpp

 /*
  * Copyright (C) 2010 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 93 matching lines @@
 IDBKeyRange* IDBKeyRange::lowerBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
 {
     IDBKey* bound = ScriptValue::to<IDBKey*>(toIsolate(context), boundValue, exceptionState);
     if (exceptionState.hadException())
         return nullptr;
     if (!bound || !bound->isValid()) {
         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
         return nullptr;
     }
 
-    return IDBKeyRange::create(bound, 0, open ? LowerBoundOpen : LowerBoundClosed, UpperBoundOpen);
+    return IDBKeyRange::create(bound, nullptr, open ? LowerBoundOpen : LowerBoundClosed, UpperBoundOpen);
 }
 
 IDBKeyRange* IDBKeyRange::upperBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
 {
     IDBKey* bound = ScriptValue::to<IDBKey*>(toIsolate(context), boundValue, exceptionState);
     if (exceptionState.hadException())
         return nullptr;
     if (!bound || !bound->isValid()) {
         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
         return nullptr;
     }
 
-    return IDBKeyRange::create(0, bound, LowerBoundOpen, open ? UpperBoundOpen : UpperBoundClosed);
+    return IDBKeyRange::create(nullptr, bound, LowerBoundOpen, open ? UpperBoundOpen : UpperBoundClosed);
 }
 
 IDBKeyRange* IDBKeyRange::bound(ExecutionContext* context, const ScriptValue& lowerValue, const ScriptValue& upperValue, bool lowerOpen, bool upperOpen, ExceptionState& exceptionState)
 {
     IDBKey* lower = ScriptValue::to<IDBKey*>(toIsolate(context), lowerValue, exceptionState);
     if (exceptionState.hadException())
         return nullptr;
     if (!lower || !lower->isValid()) {
         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
         return nullptr;
@@ skipping 13 matching lines @@
     }
     if (upper->isEqual(lower) && (lowerOpen || upperOpen)) {
         exceptionState.throwDOMException(DataError, "The lower key and upper key are equal and one of the bounds is open.");
         return nullptr;
     }
 
     return IDBKeyRange::create(lower, upper, lowerOpen ? LowerBoundOpen : LowerBoundClosed, upperOpen ? UpperBoundOpen : UpperBoundClosed);
 }
 
 } // namespace blink