Added lifecycle management and sharing support for SharedWorkers. SharedWorkers

chrome/renderer/websharedworkerrepository_impl.h

 // Copyright (c) 2009 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 CHROME_RENDERER_WEB_SHARED_WORKER_REPOSITORY_IMPL_H_
 #define CHROME_RENDERER_WEB_SHARED_WORKER_REPOSITORY_IMPL_H_
 
 #include "third_party/WebKit/WebKit/chromium/public/WebSharedWorkerRepository.h"
 
+#include "base/hash_tables.h"
+
 namespace WebKit {
   class WebSharedWorker;
 }
 
 class WebSharedWorkerRepositoryImpl : public WebKit::WebSharedWorkerRepository {
+ public:
     virtual void addSharedWorker(WebKit::WebSharedWorker*, DocumentID document);
     virtual void documentDetached(DocumentID document);
+
+    // Returns true if the document has created a SharedWorker (used by the
+    // WebKit code to determine if the document can be suspended).
     virtual bool hasSharedWorkers(DocumentID document);
+ private:
+    // The set of documents that have created a SharedWorker.
+    typedef base::hash_set<DocumentID> DocumentSet;
+    DocumentSet shared_worker_parents_;
 };
 
 #endif  // CHROME_RENDERER_WEB_SHARED_WORKER_REPOSITORY_IMPL_H_