Update the ResourceRequest in DocumentLoader after the embedder modified it

Source/core/fetch/RawResource.h

Index: Source/core/fetch/RawResource.h
diff --git a/Source/core/fetch/RawResource.h b/Source/core/fetch/RawResource.h
index 235d719ecdce2e11776dcbd04432f24d5407e5be..57ce6fb2195eb16f3d4e221757037680384bd6e4 100644
--- a/Source/core/fetch/RawResource.h
+++ b/Source/core/fetch/RawResource.h
@@ -50,6 +50,7 @@ private:
     virtual bool shouldIgnoreHTTPStatusCodeErrors() const { return true; }
 
     virtual void willSendRequest(ResourceRequest&, const ResourceResponse&);
+    virtual void updateRequest(const ResourceRequest&);
     virtual void responseReceived(const ResourceResponse&);
     virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
     virtual void didDownloadData(int);
@@ -92,6 +93,7 @@ public:
     virtual void responseReceived(Resource*, const ResourceResponse&) { }
     virtual void dataReceived(Resource*, const char* /* data */, int /* length */) { }
     virtual void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) { }
+    virtual void updateRequest(Resource*, const ResourceRequest&) { }
     virtual void dataDownloaded(Resource*, int) { }
 };