Update ResourceResponse::encodedDataLength when response is completed

third_party/WebKit/public/platform/WebURLLoaderClient.h

Index: third_party/WebKit/public/platform/WebURLLoaderClient.h
diff --git a/third_party/WebKit/public/platform/WebURLLoaderClient.h b/third_party/WebKit/public/platform/WebURLLoaderClient.h
index 190cef7b16761a910e7eb16825a4bafba87b9a56..e470bf461532cd1aeb3fa9a674e3686f418f1f2f 100644
--- a/third_party/WebKit/public/platform/WebURLLoaderClient.h
+++ b/third_party/WebKit/public/platform/WebURLLoaderClient.h
@@ -109,7 +109,10 @@ class BLINK_PLATFORM_EXPORT WebURLLoaderClient {
                                 int64_t totalEncodedDataLength) {}
 
   // Called when the load completes with an error.
-  virtual void didFail(WebURLLoader*, const WebURLError&) {}
+  // |totalEncodedDataLength| may be equal to kUnknownEncodedDataLength.
+  virtual void didFail(WebURLLoader*,
+                       const WebURLError&,
+                       int64_t totalEncodedDataLength) {}
 
   // Value passed to didFinishLoading when total encoded data length isn't
   // known.