Introduce url_list to the Response scheme of CacheStorage.

third_party/WebKit/Source/core/loader/WorkerThreadableLoader.h

Index: third_party/WebKit/Source/core/loader/WorkerThreadableLoader.h
diff --git a/third_party/WebKit/Source/core/loader/WorkerThreadableLoader.h b/third_party/WebKit/Source/core/loader/WorkerThreadableLoader.h
index 2c70a2f75a57e1944b3339e782c246b176b3bfde..a9992dfc60d4130f45528e82b2f8e0a1f13c483e 100644
--- a/third_party/WebKit/Source/core/loader/WorkerThreadableLoader.h
+++ b/third_party/WebKit/Source/core/loader/WorkerThreadableLoader.h
@@ -154,6 +154,7 @@ class WorkerThreadableLoader final : public ThreadableLoader {
 
     void didSendData(unsigned long long bytesSent,
                      unsigned long long totalBytesToBeSent) override;
+    void didReceiveRedirectTo(const KURL&) override;
     void didReceiveResponse(unsigned long identifier,
                             const ResourceResponse&,
                             std::unique_ptr<WebDataConsumerHandle>) override;
@@ -193,6 +194,7 @@ class WorkerThreadableLoader final : public ThreadableLoader {
 
   void didSendData(unsigned long long bytesSent,
                    unsigned long long totalBytesToBeSent);
+  void didReceiveRedirectTo(const KURL&);
   void didReceiveResponse(unsigned long identifier,
                           std::unique_ptr<CrossThreadResourceResponseData>,
                           std::unique_ptr<WebDataConsumerHandle>);