Introducing the WebServiceWorkerCache.

Source/modules/serviceworkers/Request.h

Index: Source/modules/serviceworkers/Request.h
diff --git a/Source/modules/serviceworkers/Request.h b/Source/modules/serviceworkers/Request.h
index 5a7b3f7e06000f15f192cbdeef4cbae048f4dcb9..032d9d1d30c532d090ca4a5725ef69d348a62b87 100644
--- a/Source/modules/serviceworkers/Request.h
+++ b/Source/modules/serviceworkers/Request.h
@@ -26,7 +26,6 @@ class WebServiceWorkerRequest;
 class Request FINAL : public Body {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    virtual ~Request() { }
     static Request* create(ExecutionContext*, const String&, ExceptionState&);
     static Request* create(ExecutionContext*, const String&, const Dictionary&, ExceptionState&);
     static Request* create(ExecutionContext*, Request*, ExceptionState&);
@@ -34,6 +33,7 @@ public:
     static Request* create(ExecutionContext*, FetchRequestData*);
     static Request* create(ExecutionContext*, const WebServiceWorkerRequest&);
 
+    const FetchRequestData* request() const { return m_request; }
     FetchRequestData* request() { return m_request; }
 
     String method() const;
@@ -43,7 +43,7 @@ public:
     String mode() const;
     String credentials() const;
 
-    void populateWebServiceWorkerRequest(WebServiceWorkerRequest&);
+    void populateWebServiceWorkerRequest(WebServiceWorkerRequest&) const;
 
     void setBodyBlobHandle(PassRefPtr<BlobDataHandle>);