Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/modules/indexeddb/IDBCursor.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 85 matching lines @@
 IDBCursor::~IDBCursor()
 {
 }
 
 PassRefPtr<IDBRequest> IDBCursor::update(ScriptState* state, ScriptValue& value, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBCursor::update");
 
     if (!m_gotValue) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::noValueErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (isKeyCursor()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::isKeyCursorErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (isDeleted()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::sourceDeletedErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (m_transaction->isFinished()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (!m_transaction->isActive()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (m_transaction->isReadOnly()) {
         exceptionState.throwDOMException(ReadOnlyError, "The record may not be updated inside a read-only transaction.");
-        return 0;
+        return nullptr;
     }
 
     RefPtr<IDBObjectStore> objectStore = effectiveObjectStore();
     const IDBKeyPath& keyPath = objectStore->metadata().keyPath;
     const bool usesInLineKeys = !keyPath.isNull();
     if (usesInLineKeys) {
         RefPtr<IDBKey> keyPathKey = createIDBKeyFromScriptValueAndKeyPath(m_request->requestState(), value, keyPath);
         if (!keyPathKey || !keyPathKey->isEqual(m_primaryKey.get())) {
             exceptionState.throwDOMException(DataError, "The effective object store of this cursor uses in-line keys and evaluating the key path of the value parameter results in a different value than the cursor's effective key.");
-            return 0;
+            return nullptr;
         }
     }
 
     return objectStore->put(WebIDBDatabase::CursorUpdate, IDBAny::create(this), state, value, m_primaryKey, exceptionState);
 }
 
 void IDBCursor::advance(unsigned long count, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBCursor::advance");
     if (!count) {
@@ skipping 20 matching lines @@
 
     m_request->setPendingCursor(this);
     m_gotValue = false;
     m_backend->advance(count, WebIDBCallbacksImpl::create(m_request).leakPtr());
 }
 
 void IDBCursor::continueFunction(ExecutionContext* context, const ScriptValue& keyValue, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBCursor::continue");
     DOMRequestState requestState(context);
-    RefPtr<IDBKey> key = keyValue.isUndefined() || keyValue.isNull() ? 0 : scriptValueToIDBKey(&requestState, keyValue);
+    RefPtr<IDBKey> key = keyValue.isUndefined() || keyValue.isNull() ? nullptr : scriptValueToIDBKey(&requestState, keyValue);
     if (key && !key->isValid()) {
         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
         return;
     }
-    continueFunction(key.release(), 0, exceptionState);
+    continueFunction(key.release(), nullptr, exceptionState);
 }
 
 void IDBCursor::continuePrimaryKey(ExecutionContext* context, const ScriptValue& keyValue, const ScriptValue& primaryKeyValue, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBCursor::continuePrimaryKey");
     DOMRequestState requestState(context);
     RefPtr<IDBKey> key = scriptValueToIDBKey(&requestState, keyValue);
     RefPtr<IDBKey> primaryKey = scriptValueToIDBKey(&requestState, primaryKeyValue);
     if (!key->isValid() || !primaryKey->isValid()) {
         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
@@ skipping 50 matching lines @@
     m_request->setPendingCursor(this);
     m_gotValue = false;
     m_backend->continueFunction(key, primaryKey, WebIDBCallbacksImpl::create(m_request).leakPtr());
 }
 
 PassRefPtr<IDBRequest> IDBCursor::deleteFunction(ExecutionContext* context, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBCursor::delete");
     if (m_transaction->isFinished()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (!m_transaction->isActive()) {
         exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (m_transaction->isReadOnly()) {
         exceptionState.throwDOMException(ReadOnlyError, "The record may not be deleted inside a read-only transaction.");
-        return 0;
+        return nullptr;
     }
 
     if (!m_gotValue) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::noValueErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (isKeyCursor()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::isKeyCursorErrorMessage);
-        return 0;
+        return nullptr;
     }
     if (isDeleted()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::sourceDeletedErrorMessage);
-        return 0;
+        return nullptr;
     }
 
     RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(m_primaryKey, exceptionState);
     ASSERT(!exceptionState.hadException());
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     m_transaction->backendDB()->deleteRange(m_transaction->id(), effectiveObjectStore()->id(), keyRange.release(), WebIDBCallbacksImpl::create(request).leakPtr());
     return request.release();
 }
 
@@ skipping 126 matching lines @@
     case WebIDBCursor::PrevNoDuplicate:
         return IDBCursor::directionPrevUnique();
 
     default:
         ASSERT_NOT_REACHED();
         return IDBCursor::directionNext();
     }
 }
 
 } // namespace WebCore