Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/modules/indexeddb/IDBIndex.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 52 matching lines @@
 {
     DOMRequestState requestState(context);
     return idbAnyToScriptValue(&requestState, IDBAny::create(m_metadata.keyPath));
 }
 
 PassRefPtr<IDBRequest> IDBIndex::openCursor(ExecutionContext* context, const ScriptValue& range, const String& directionString, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBIndex::openCursor");
     if (isDeleted()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
-        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;
     }
     WebIDBCursor::Direction direction = IDBCursor::stringToDirection(directionString, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, range, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     return openCursor(context, keyRange.release(), direction);
 }
 
 PassRefPtr<IDBRequest> IDBIndex::openCursor(ExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, WebIDBCursor::Direction direction)
 {
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     request->setCursorDetails(IndexedDB::CursorKeyAndValue, direction);
     backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, direction, false, WebIDBDatabase::NormalTask, WebIDBCallbacksImpl::create(request).leakPtr());
     return request;
 }
 
 PassRefPtr<IDBRequest> IDBIndex::count(ExecutionContext* context, const ScriptValue& range, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBIndex::count");
     if (isDeleted()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
-        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;
     }
 
     RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, range, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     backendDB()->count(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange.release(), WebIDBCallbacksImpl::create(request).leakPtr());
     return request;
 }
 
 PassRefPtr<IDBRequest> IDBIndex::openKeyCursor(ExecutionContext* context, const ScriptValue& range, const String& directionString, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBIndex::openKeyCursor");
     if (isDeleted()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
-        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;
     }
     WebIDBCursor::Direction direction = IDBCursor::stringToDirection(directionString, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, range, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     request->setCursorDetails(IndexedDB::CursorKeyOnly, direction);
     backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange.release(), direction, true, WebIDBDatabase::NormalTask, WebIDBCallbacksImpl::create(request).leakPtr());
     return request;
 }
 
 PassRefPtr<IDBRequest> IDBIndex::get(ExecutionContext* context, const ScriptValue& key, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBIndex::get");
     return getInternal(context, key, exceptionState, false);
 }
 
 PassRefPtr<IDBRequest> IDBIndex::getKey(ExecutionContext* context, const ScriptValue& key, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBIndex::getKey");
     return getInternal(context, key, exceptionState, true);
 }
 
 PassRefPtr<IDBRequest> IDBIndex::getInternal(ExecutionContext* context, const ScriptValue& key, ExceptionState& exceptionState, bool keyOnly)
 {
     if (isDeleted()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
-        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;
     }
 
     RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, key, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
     if (!keyRange) {
         exceptionState.throwDOMException(DataError, IDBDatabase::noKeyOrKeyRangeErrorMessage);
-        return 0;
+        return nullptr;
     }
 
     RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
     backendDB()->get(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange.release(), keyOnly, WebIDBCallbacksImpl::create(request).leakPtr());
     return request;
 }
 
 WebIDBDatabase* IDBIndex::backendDB() const
 {
     return m_transaction->backendDB();
 }
 
 bool IDBIndex::isDeleted() const
 {
     return m_deleted || m_objectStore->isDeleted();
 }
 
 } // namespace WebCore