Remove didDownloadData stub added for waiting on chromium changes

public/platform/WebURLLoaderClient.h

Index: public/platform/WebURLLoaderClient.h
diff --git a/public/platform/WebURLLoaderClient.h b/public/platform/WebURLLoaderClient.h
index 1826b484320f54039310c1cdde6866a6e60e09ef..072c463ce151973fb40dd23af085f155a8f0220d 100644
--- a/public/platform/WebURLLoaderClient.h
+++ b/public/platform/WebURLLoaderClient.h
@@ -56,9 +56,6 @@ public:
     // Called when a chunk of response data is downloaded. This is only called
     // if WebURLRequest's downloadToFile flag was set to true.
     virtual void didDownloadData(WebURLLoader*, int dataLength, int encodedDataLength) { }
-    // FIXME: Remove this stub function when Chrome-side change propagating the
-    // encodedDataLength is landed.
-    virtual void didDownloadData(WebURLLoader* loader, int dataLength) { didDownloadData(loader, dataLength, -1); }
 
     // Called when a chunk of response data is received.
     virtual void didReceiveData(WebURLLoader*, const char* data, int dataLength, int encodedDataLength) { }