Reland: URLRequestJob: change ReadRawData contract

net/url_request/url_request_http_job.h

Index: net/url_request/url_request_http_job.h
diff --git a/net/url_request/url_request_http_job.h b/net/url_request/url_request_http_job.h
index 4ee4440607fae141f9b5a46cbf1272b57b1738f2..f9ce4017db71e0263fec0abad43c052ec7d62383 100644
--- a/net/url_request/url_request_http_job.h
+++ b/net/url_request/url_request_http_job.h
@@ -78,9 +78,6 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   // Shadows URLRequestJob's version of this method so we can grab cookies.
   void NotifyHeadersComplete();
 
-  // Shadows URLRequestJob's method so we can record histograms.
-  void NotifyDone(const URLRequestStatus& status);
-
   void DestroyTransaction();
 
   void AddExtraHeaders();
@@ -131,7 +128,7 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   void ContinueWithCertificate(X509Certificate* client_cert) override;
   void ContinueDespiteLastError() override;
   void ResumeNetworkStart() override;
-  bool ReadRawData(IOBuffer* buf, int buf_size, int* bytes_read) override;
+  int ReadRawData(IOBuffer* buf, int buf_size) override;
   void StopCaching() override;
   bool GetFullRequestHeaders(HttpRequestHeaders* headers) const override;
   int64 GetTotalReceivedBytes() const override;