PlzNavigate: Pass the encoded resource transfer size to the renderer.

content/browser/streams/stream_url_request_job.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/streams/stream_url_request_job.h"
 
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 127 matching lines @@
     *info = *response_info_;
 }
 
 int StreamURLRequestJob::GetResponseCode() const {
   if (!response_info_)
     return -1;
 
   return response_info_->headers->response_code();
 }
 
+int64_t StreamURLRequestJob::GetTotalReceivedBytes() const {
+  int64_t total_received_bytes = 0;
+  if (response_info_)
+    total_received_bytes = response_info_->headers->raw_headers().size();
+  if (stream_.get())
+    total_received_bytes += total_bytes_read_;
+  return total_received_bytes;
+}
+
 void StreamURLRequestJob::DidStart() {
   if (range_parse_result() == net::OK && ranges().size() > 0) {
     // Only one range is supported, and it must start at the first byte.
     if (ranges().size() > 1 || ranges()[0].first_byte_position() != 0) {
       NotifyFailure(net::ERR_METHOD_NOT_SUPPORTED);
       return;
     }
 
     max_range_ = ranges()[0].last_byte_position() + 1;
   }
@@ skipping 59 matching lines @@
 }
 
 void StreamURLRequestJob::ClearStream() {
   if (stream_.get()) {
     stream_->RemoveReadObserver(this);
     stream_ = NULL;
   }
 }
 
 }  // namespace content