Add WorkerSettings to expose certain flag values in WorkerGlobalScope

third_party/WebKit/Source/core/workers/WorkerSettings.cpp

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "core/workers/WorkerSettings.h"
+
+namespace blink {
+
+WorkerSettings::WorkerSettings(Settings* settings)
+{
+    if (settings)
+        this->copyFlagValuesFromSettings(settings);
+    else
+        this->setDefaultValues();
+}
+
+void WorkerSettings::copyFlagValuesFromSettings(Settings* settings)
+{
+    m_disableReadingFromCanvas = settings->disableReadingFromCanvas();
+}
+
+void WorkerSettings::setDefaultValues()
+{
+    m_disableReadingFromCanvas = false;
+}
+
+} // namespace blink