Implement GetTransferSize for url request.

Currently transfer size is calculated on base of netlog events. That's a misuse of netlog system.

With this patch transfer size could be directly requested from UrlRequest.

In some cases there are multiple network requests for one UrlRequest. In that case we sum "received" bytes for all network requests.

BUG=111052

Review URL: https://codereview.chromium.org/46223003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244477 0039d316-1c4b-4281-b951-d872f2087c98

net/url_request/url_request.cc

@@ -352,6 +352,13 @@ bool URLRequest::GetFullRequestHeaders(HttpRequestHeaders* headers) const {
   return job_->GetFullRequestHeaders(headers);
 }
 
+int64 URLRequest::GetTotalReceivedBytes() const {
+  if (!job_.get())
+    return 0;
+
+  return job_->GetTotalReceivedBytes();
+}
+
 LoadStateWithParam URLRequest::GetLoadState() const {
   // The !blocked_by_.empty() check allows |this| to report it's blocked on a
   // delegate before it has been started.

net/url_request/url_request.h

@@ -440,6 +440,10 @@ class NET_EXPORT URLRequest : NON_EXPORTED_BASE(public base::NonThreadSafe),
   // 2. The OnResponseStarted callback is currently running or has run.
   bool GetFullRequestHeaders(HttpRequestHeaders* headers) const;
 
+  // Gets the total amount of data received from network after SSL decoding and
+  // proxy handling.
+  int64 GetTotalReceivedBytes() const;
+
   // Returns the current load state for the request. The returned value's
   // |param| field is an optional parameter describing details related to the
   // load state. Not all load states have a parameter.

net/url_request/url_request_http_job.cc

@@ -1242,6 +1242,13 @@ bool URLRequestHttpJob::GetFullRequestHeaders(
   return transaction_->GetFullRequestHeaders(headers);
 }
 
+int64 URLRequestHttpJob::GetTotalReceivedBytes() const {
+  if (!transaction_)
+    return 0;
+
+  return transaction_->GetTotalReceivedBytes();
+}
+
 void URLRequestHttpJob::DoneReading() {
   if (transaction_.get())
     transaction_->DoneReading();

net/url_request/url_request_http_job.h

@@ -119,6 +119,7 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   virtual void StopCaching() OVERRIDE;
   virtual bool GetFullRequestHeaders(
       HttpRequestHeaders* headers) const OVERRIDE;
+  virtual int64 GetTotalReceivedBytes() const OVERRIDE;
   virtual void DoneReading() OVERRIDE;
   virtual HostPortPair GetSocketAddress() const OVERRIDE;
   virtual void NotifyURLRequestDestroyed() OVERRIDE;

net/url_request/url_request_job.cc

@@ -110,6 +110,10 @@ bool URLRequestJob::GetFullRequestHeaders(HttpRequestHeaders* headers) const {
   return false;
 }
 
+int64 URLRequestJob::GetTotalReceivedBytes() const {
+  return 0;
+}
+
 LoadState URLRequestJob::GetLoadState() const {
   return LOAD_STATE_IDLE;
 }

net/url_request/url_request_job.h

@@ -107,6 +107,9 @@ class NET_EXPORT URLRequestJob
 
   virtual bool GetFullRequestHeaders(HttpRequestHeaders* headers) const;
 
+  // Get the number of bytes received from network.
+  virtual int64 GetTotalReceivedBytes() const;
+
   // Called to fetch the current load state for the job.
   virtual LoadState GetLoadState() const;