[ServiceWorker] Add wasFetchedViaServiceWorker flag to WebURLResponse and ResourceResponse.

public/platform/WebURLResponse.h

 /*
  * Copyright (C) 2009 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
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 148 matching lines @@
 
     // Flag whether this request was made when "Alternate-Protocol: xxx"
     // is present in server's response.
     BLINK_PLATFORM_EXPORT bool wasAlternateProtocolAvailable() const;
     BLINK_PLATFORM_EXPORT void setWasAlternateProtocolAvailable(bool);
 
     // Flag whether this request was loaded via an explicit proxy (HTTP, SOCKS, etc).
     BLINK_PLATFORM_EXPORT bool wasFetchedViaProxy() const;
     BLINK_PLATFORM_EXPORT void setWasFetchedViaProxy(bool);
 
+    // Flag whether this request was loaded via a ServiceWorker.
+    BLINK_PLATFORM_EXPORT bool wasFetchedViaServiceWorker() const;
+    BLINK_PLATFORM_EXPORT void setWasFetchedViaServiceWorker(bool);
+
     // Flag whether this request is part of a multipart response.
     BLINK_PLATFORM_EXPORT bool isMultipartPayload() const;
     BLINK_PLATFORM_EXPORT void setIsMultipartPayload(bool);
 
     // This indicates the location of a downloaded response if the
     // WebURLRequest had the downloadToFile flag set to true. This file path
     // remains valid for the lifetime of the WebURLLoader used to create it.
     BLINK_PLATFORM_EXPORT WebString downloadFilePath() const;
     BLINK_PLATFORM_EXPORT void setDownloadFilePath(const WebString&);
 
@@ skipping 17 matching lines @@
 protected:
     BLINK_PLATFORM_EXPORT void assign(WebURLResponsePrivate*);
 
 private:
     WebURLResponsePrivate* m_private;
 };
 
 } // namespace blink
 
 #endif