Simplify SharedWorkerRepository code (Chromium side)

content/renderer/shared_worker_repository.h

+// Copyright 2013 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.
+
+#ifndef CONTENT_RENDERER_SHARED_WORKER_REPOSITORY_H_
+#define CONTENT_RENDERER_SHARED_WORKER_REPOSITORY_H_
+
+#include <set>
+
+#include "base/basictypes.h"
+#include "content/public/renderer/render_view_observer.h"
+#include "third_party/WebKit/public/web/WebSharedWorkerRepositoryClient.h"
+
+namespace content {
+
+class RenderViewImpl;
+
+class SharedWorkerRepository : public RenderViewObserver,
+                               public WebKit::WebSharedWorkerRepositoryClient {
+ public:
+  explicit SharedWorkerRepository(RenderViewImpl* render_view);
+  virtual ~SharedWorkerRepository();
+
+  // WebSharedWorkerRepositoryClient overrides.
+  virtual WebKit::WebSharedWorker* createSharedWorker(
+      const WebKit::WebURL& url,
+      const WebKit::WebString& name,
+      DocumentID document_id) OVERRIDE;
+  virtual void documentDetached(DocumentID document_id) OVERRIDE;
+
+ private:
+  std::set<DocumentID> documents_with_workers_;
+
+  DISALLOW_COPY_AND_ASSIGN(SharedWorkerRepository);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_SHARED_WORKER_REPOSITORY_H_