Simplify SharedWorkerRepository code

public/web/WebSharedWorkerRepositoryClient.h

Index: public/web/WebSharedWorkerRepositoryClient.h
diff --git a/public/web/WebSharedWorkerRepository.h b/public/web/WebSharedWorkerRepositoryClient.h
similarity index 73%
copy from public/web/WebSharedWorkerRepository.h
copy to public/web/WebSharedWorkerRepositoryClient.h
index 34c4a91b1df661915d8bc44e7b6c543c83e6071d..c81a5d5788e1d1e2bfbb3040c002ca5b1c13206e 100644
--- a/public/web/WebSharedWorkerRepository.h
+++ b/public/web/WebSharedWorkerRepositoryClient.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Copyright (C) 2013 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
@@ -28,10 +28,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebSharedWorkerRepository_h
-#define WebSharedWorkerRepository_h
-
-#include "../platform/WebCommon.h"
+#ifndef WebSharedWorkerRepositoryClient_h
+#define WebSharedWorkerRepositoryClient_h
 
 namespace WebKit {
 
@@ -39,24 +37,18 @@ class WebString;
 class WebSharedWorker;
 class WebURL;
 
-class WebSharedWorkerRepository {
+class WebSharedWorkerRepositoryClient {
 public:
     // Unique identifier for the parent document of a worker (unique within a given process).
     typedef unsigned long long DocumentID;
 
-    // Tracks a newly-created SharedWorker via the repository.
-    virtual void addSharedWorker(WebSharedWorker*, DocumentID) = 0;
+    // Creates a new shared worker. This may return null.
+    virtual WebSharedWorker* createSharedWorker(const WebURL&, const WebString&, DocumentID) { return 0; }
 
     // Invoked when a document has been detached. DocumentID can be re-used after documentDetached() is invoked.
-    virtual void documentDetached(DocumentID) = 0;
-
-    // Returns true if the passed document is associated with any SharedWorkers.
-    virtual bool hasSharedWorkers(DocumentID) = 0;
+    virtual void documentDetached(DocumentID) { }
 };
 
-// Initializes shared worker support.
-BLINK_EXPORT void setSharedWorkerRepository(WebSharedWorkerRepository*);
-
 } // namespace WebKit
 
-#endif // WebSharedWorkerRepository_h
+#endif // WebSharedWorkerRepositoryClient_h