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

This should fix the http/tests/misc/resource-timing-sizes-tags.html layout test.
The other test http/tests/inspector/resource-har-conversion.html needs an expectation
change to allow the custom header which is passed for PlzNavigate. Will do that in a later
patchset.

Changes on this patch are to implement the GetTotalReceivedBytes() override for the StreamURLRequestJob class

BUG=673745

Review-Url: https://codereview.chromium.org/2612683002
Cr-Commit-Position: refs/heads/master@{#441409}

content/browser/streams/stream_url_request_job.cc

@@ -145,6 +145,15 @@ int StreamURLRequestJob::GetResponseCode() const {
   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.

content/browser/streams/stream_url_request_job.h

@@ -34,6 +34,7 @@ class CONTENT_EXPORT StreamURLRequestJob
   bool GetMimeType(std::string* mime_type) const override;
   void GetResponseInfo(net::HttpResponseInfo* info) override;
   int GetResponseCode() const override;
+  int64_t GetTotalReceivedBytes() const override;
 
  protected:
   ~StreamURLRequestJob() override;
@@ -50,6 +51,7 @@ class CONTENT_EXPORT StreamURLRequestJob
   int pending_buffer_size_;
   std::unique_ptr<net::HttpResponseInfo> response_info_;
 
+  // Total bytes received for this job.
   int total_bytes_read_;
   int max_range_;
   bool request_failed_;

third_party/WebKit/LayoutTests/FlagExpectations/enable-browser-side-navigation

@@ -145,10 +145,6 @@ crbug.com/673742 fast/dom/Document/open-with-pending-load.html [ Failure ]
 # https://crbug.com/673744 Popups should open in the correct window
 crbug.com/673744 fast/dom/HTMLAnchorElement/anchor-no-multiple-windows.html [ Failure ]
 
-# https://crbug.com/673745 Resource transfer size should be forwarded to blink
-crbug.com/673745 http/tests/misc/resource-timing-sizes-tags.html [ Failure ]
-crbug.com/673745 virtual/mojo-loading/http/tests/misc/resource-timing-sizes-tags.html [ Failure ]
-
 # Timeout when receiving a 204 response
 # Note (clamy): I haven't filed a bug yet since
 # https://codereview.chromium.org/2549373004/ will modify 204 handling when it