Add EmbeddedWorker interfaces in Blink API

public/web/WebServiceWorkerContextClient.h

Index: public/web/WebServiceWorkerContextClient.h
diff --git a/Source/web/WorkerPermissionClient.h b/public/web/WebServiceWorkerContextClient.h
similarity index 55%
copy from Source/web/WorkerPermissionClient.h
copy to public/web/WebServiceWorkerContextClient.h
index 8abcffb95c2c45e6d78c76d0f15720240f78f434..4ee02d16431aa2dc26f6eaea9e63421a24cd38e7 100644
--- a/Source/web/WorkerPermissionClient.h
+++ b/public/web/WebServiceWorkerContextClient.h
@@ -28,43 +28,41 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WorkerPermissionClient_h
-#define WorkerPermissionClient_h
+#ifndef WebServiceWorkerContextClient_h
+#define WebServiceWorkerContextClient_h
 
-#include "core/workers/WorkerClients.h"
-#include "wtf/Forward.h"
-
-namespace WebCore {
-class ExecutionContext;
-}
+#include "WebWorkerPermissionClientProxy.h"
 
 namespace blink {
 
-class WebFrame;
 class WebString;
-class WebWorkerPermissionClientProxy;
+class WebServiceWorkerContextProxy;
 
-class WorkerPermissionClient : public WebCore::Supplement<WebCore::WorkerClients> {
+// This interface is implemented by the client. It is suppoed to be created
+// on the main thread and then passed on to the worker thread to be owned
+// by a newly created WorkerGlobalScope. All methods of this class are
+// called on the worker thread.
+class WebServiceWorkerContextClient {
 public:
-    static PassOwnPtr<WorkerPermissionClient> create(PassOwnPtr<WebWorkerPermissionClientProxy>);
-
-    virtual ~WorkerPermissionClient();
+    // A new WorkerGlobalScope is created and started to run on the
+    // worker thread.
+    // This also gives back a proxy to the client to talk to the
+    // newly created WorkerGlobalScope. The proxy is held by WorkerGlobalScope
+    // and should not be held by the caller. No proxy methods should be called
+    // after workerContextDestroyed() is called.
+    virtual void workerContextStarted(WebServiceWorkerContextProxy*) { }
 
-    bool allowDatabase(const WebString& name, const WebString& displayName, unsigned long estimatedSize);
-    bool allowFileSystem();
-    bool allowIndexedDB(const WebString& name);
+    // WorkerGlobalScope.close() is called.
+    virtual void workerContextClosed() { }
 
-    static const char* supplementName();
-    static WorkerPermissionClient* from(WebCore::ExecutionContext*);
+    // WorkerGlobalScope is destroyed. The client should clear the
+    // WebServiceWorkerGlobalScopeProxy when this is called.
+    virtual void workerContextDestroyed() { }
 
-private:
-    explicit WorkerPermissionClient(PassOwnPtr<WebWorkerPermissionClientProxy>);
-
-    OwnPtr<WebWorkerPermissionClientProxy> m_proxy;
+    virtual void dispatchDevToolsMessage(const WebString&) { }
+    virtual void saveDevToolsAgentState(const WebString&) { }
 };
 
-void providePermissionClientToWorker(WebCore::WorkerClients*, PassOwnPtr<WebWorkerPermissionClientProxy>);
-
 } // namespace blink
 
-#endif // WorkerPermissionClient_h
+#endif // WebWorkerContextClient_h