[DONT COMMIT] Worklet: Implement "addModule()" algorithm for main thread worklets

third_party/WebKit/Source/modules/csspaint/PaintWorkletGlobalScopeProxy.cpp

+// Copyright 2017 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 "modules/csspaint/PaintWorkletGlobalScopeProxy.h"
+
+#include "bindings/core/v8/ScriptSourceCode.h"
+#include "bindings/core/v8/V8BindingForCore.h"
+#include "core/dom/Document.h"
+#include "core/frame/LocalFrame.h"
+#include "core/workers/WorkletGlobalScopeProxy.h"
+#include "platform/weborigin/KURL.h"
+#include "platform/wtf/WTF.h"
+
+namespace blink {
+
+std::unique_ptr<PaintWorkletGlobalScopeProxy>
+PaintWorkletGlobalScopeProxy::Create(LocalFrame* frame,
+                                     WorkletObjectProxy* object_proxy) {
+  return WTF::WrapUnique(new PaintWorkletGlobalScopeProxy(frame, object_proxy));
+}
+
+PaintWorkletGlobalScopeProxy* PaintWorkletGlobalScopeProxy::From(
+    WorkletGlobalScopeProxy* proxy) {
+  return static_cast<PaintWorkletGlobalScopeProxy*>(proxy);
+}
+
+void PaintWorkletGlobalScopeProxy::FetchAndInvokeScript(
+    int32_t request_id,
+    const KURL& script_url) {
+  DCHECK(WTF::IsMainThread());
+  global_scope_->FetchAndInvokeScript(request_id, script_url);
+}
+
+void PaintWorkletGlobalScopeProxy::EvaluateScript(
+    const ScriptSourceCode& script_source_code) {
+  DCHECK(WTF::IsMainThread());
+  global_scope_->EvaluateScript(script_source_code);
+}
+
+void PaintWorkletGlobalScopeProxy::TerminateWorkletGlobalScope() {
+  DCHECK(WTF::IsMainThread());
+  global_scope_->TerminateWorkletGlobalScope();
+}
+
+PaintWorkletGlobalScopeProxy::PaintWorkletGlobalScopeProxy(
+    LocalFrame* frame,
+    WorkletObjectProxy* object_proxy) {
+  DCHECK(WTF::IsMainThread());
+  Document* document = frame->GetDocument();
+  global_scope_ = PaintWorkletGlobalScope::Create(
+      frame, document->Url(), document->UserAgent(),
+      document->GetSecurityOrigin(), ToIsolate(document), object_proxy);
+}
+
+}  // namespace blink