Not for review - Rebase of crrev.com/62833003

Source/core/workers/UIWorker.cpp

+/*
+ * Copyright (C) 2008, 2010 Apple Inc. All Rights Reserved.
+ * Copyright (C) 2009 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "config.h"
+#include "core/workers/UIWorker.h"
+
+#include "bindings/core/v8/ExceptionState.h"
+#include "core/dom/Document.h"
+#include "core/events/MessageEvent.h"
+#include "core/fetch/ResourceFetcher.h"
+#include "core/frame/LocalDOMWindow.h"
+#include "core/frame/UseCounter.h"
+#include "core/inspector/InspectorInstrumentation.h"
+#include "core/workers/WorkerGlobalScopeProxy.h"
+#include "core/workers/WorkerGlobalScopeProxyProvider.h"
+#include "core/workers/WorkerScriptLoader.h"
+#include "core/workers/WorkerThread.h"
+#include "platform/TraceEvent.h"
+#include "wtf/MainThread.h"
+
+namespace blink {
+
+inline UIWorker::UIWorker(ExecutionContext* context)
+    : Worker(context)
+{
+    TRACE_EVENT0("teleport,uiworker", "UIWorker::UIWorker");
+}
+
+PassRefPtrWillBeRawPtr<UIWorker> UIWorker::create(ExecutionContext* context, const String& url, ExceptionState& exceptionState)
+{
+    ASSERT(isMainThread());
+    Document* document = toDocument(context);
+    UseCounter::count(context, UseCounter::WorkerStart);
+    if (!document->page()) {
+        exceptionState.throwDOMException(InvalidAccessError, "The context provided is invalid.");
+        return nullptr;
+    }
+    WorkerGlobalScopeProxyProvider* proxyProvider = WorkerGlobalScopeProxyProvider::from(*document->page());
+    ASSERT(proxyProvider);
+
+    RefPtrWillBeRawPtr<UIWorker> worker = adoptRefWillBeNoop(new UIWorker(context));
+
+    worker->suspendIfNeeded();
+
+    KURL scriptURL = worker->resolveURL(url, exceptionState);
+    if (scriptURL.isEmpty())
+        return nullptr;
+
+    worker->initScriptLoader(context, scriptURL);
+    worker->setContextProxy(proxyProvider->createWorkerGlobalScopeProxy(worker.get()));
+    return worker.release();
+}
+
+UIWorker::~UIWorker()
+{
+    ASSERT(isMainThread());
+}
+
+const AtomicString& UIWorker::interfaceName() const
+{
+    return EventTargetNames::UIWorker;
+}
+
+} // namespace blink