Add UploadProgressTracker unittest

content/browser/loader/async_resource_handler.cc

Index: content/browser/loader/async_resource_handler.cc
diff --git a/content/browser/loader/async_resource_handler.cc b/content/browser/loader/async_resource_handler.cc
index d55bc0f9a72c14c08eeacd3c26729415dee696b6..be9428d4994906043f1e09e03875119d834657ef 100644
--- a/content/browser/loader/async_resource_handler.cc
+++ b/content/browser/loader/async_resource_handler.cc
@@ -337,10 +337,7 @@ bool AsyncResourceHandler::OnWillStart(const GURL& url, bool* defer) {
   if (GetRequestInfo()->is_upload_progress_enabled() &&
       request()->has_upload()) {
     upload_progress_tracker_ = base::MakeUnique<UploadProgressTracker>(
-        FROM_HERE,
-        base::BindRepeating(&AsyncResourceHandler::SendUploadProgress,
-                            base::Unretained(this)),
-        request());
+        FROM_HERE, this, base::ThreadTaskRunnerHandle::Get());
   }
   return true;
 }
@@ -484,6 +481,19 @@ void AsyncResourceHandler::OnResponseCompleted(
     RecordHistogram();
 }
 
+net::UploadProgress AsyncResourceHandler::GetUploadProgress() {
+  return request()->GetUploadProgress();
+}
+
+void AsyncResourceHandler::ReportUploadProgress(int64_t current_position,
+                                                int64_t total_size) {
+  ResourceMessageFilter* filter = GetFilter();
+  if (!filter)
+    return;
+  filter->Send(new ResourceMsg_UploadProgress(GetRequestID(), current_position,
+                                              total_size));
+}
+
 bool AsyncResourceHandler::EnsureResourceBufferIsInitialized() {
   DCHECK(has_checked_for_sufficient_resources_);
 
@@ -553,13 +563,4 @@ void AsyncResourceHandler::RecordHistogram() {
   inlining_helper_->RecordHistogram(elapsed_time);
 }
 
-void AsyncResourceHandler::SendUploadProgress(int64_t current_position,
-                                              int64_t total_size) {
-  ResourceMessageFilter* filter = GetFilter();
-  if (!filter)
-    return;
-  filter->Send(new ResourceMsg_UploadProgress(
-      GetRequestID(), current_position, total_size));
-}
-
 }  // namespace content