[proof-of-concept] SW thread independent of the main thread

third_party/WebKit/public/web/modules/serviceworker/WebIsolatedWorkerContextClient.h

Index: third_party/WebKit/public/web/modules/serviceworker/WebIsolatedWorkerContextClient.h
diff --git a/third_party/WebKit/public/web/modules/serviceworker/WebIsolatedWorkerContextClient.h b/third_party/WebKit/public/web/modules/serviceworker/WebIsolatedWorkerContextClient.h
new file mode 100644
index 0000000000000000000000000000000000000000..dac9bce472f54fe6797237912dead89ecc8b95d9
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+++ b/third_party/WebKit/public/web/modules/serviceworker/WebIsolatedWorkerContextClient.h
@@ -0,0 +1,50 @@
+
+#ifndef WebIsolatedWorkerContextClient_h
+#define WebIsolatedWorkerContextClient_h
+
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "mojo/public/cpp/bindings/struct_ptr.h"
+#include "mojo/public/cpp/system/message_pipe.h"
+#include "public/platform/WebCommon.h"
+#include "public/platform/modules/serviceworker/WebServiceWorkerRegistration.h"
+
+namespace blink {
+
+namespace mojom {
+    class WorkerScriptList;
+}
+
+class WebIsolatedWorkerContextClient {
+public:
+    using DataVector = std::vector<std::unique_ptr<std::vector<char>>>;
+    struct WebScriptData {
+        WebScriptData(const std::string& url, std::unique_ptr<DataVector> data, std::unique_ptr<DataVector> meta_data)
+            : url(url)
+            , data(std::move(data))
+            , meta_data(std::move(meta_data))
+        {
+        }
+        std::string url;
+        std::unique_ptr<DataVector> data;
+        std::unique_ptr<DataVector> meta_data;
+    };
+
+    virtual ~WebIsolatedWorkerContextClient() {}
+    virtual void initializeOnWorkerThread() {}
+    virtual void workerDestroyed() {}
+
+    virtual void connectToRemoteService(const char* name, mojo::ScopedMessagePipeHandle) = 0;
+
+    template <typename Interface>
+    void connectToRemoteService(mojo::InterfaceRequest<Interface> ptr)
+    {
+        connectToRemoteService(Interface::Name_, ptr.PassMessagePipe());
+    }
+
+    virtual std::unique_ptr<std::vector<std::unique_ptr<WebScriptData>>> takeWorkerScriptList() = 0;
+    virtual std::unique_ptr<WebServiceWorkerRegistration::Handle> takeAssociatedRegistration() = 0;
+};
+
+} // namespace blink
+
+#endif // WebIsolatedWorkerContextClient_h