Implement FormData::isSafeToSendToAnotherThread()

Source/platform/network/FormData.cpp

 /*
  * Copyright (C) 2004, 2006, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 11 matching lines @@
 #include "config.h"
 #include "platform/network/FormData.h"
 
 #include "platform/FileMetadata.h"
 #include "platform/network/FormDataBuilder.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/TextEncoding.h"
 
 namespace blink {
 
+bool FormDataElement::isSafeToSendToAnotherThread() const
+{
+    return m_filename.isSafeToSendToAnotherThread()
+        && m_blobUUID.isSafeToSendToAnotherThread()
+        && m_fileSystemURL.isSafeToSendToAnotherThread();
+}
+
 inline FormData::FormData()
     : m_identifier(0)
     , m_containsPasswordData(false)
 {
 }
 
 inline FormData::FormData(const FormData& data)
     : RefCounted<FormData>()
     , m_elements(data.m_elements)
     , m_identifier(data.m_identifier)
@@ skipping 138 matching lines @@
                 size += e.m_optionalBlobDataHandle->size();
             break;
         case FormDataElement::encodedFileSystemURL:
             size += e.m_fileLength - e.m_fileStart;
             break;
         }
     }
     return size;
 }
 
+bool FormData::isSafeToSendToAnotherThread() const
+{
+    if (!hasOneRef())
+        return false;
+    for (auto& element : m_elements) {
+        if (!element.isSafeToSendToAnotherThread())
+            return false;
+    }
+    return true;
+}
+
 } // namespace blink