Factor out upload progress handling from AsyncResourceHandler

content/browser/loader/DEPS

Index: content/browser/loader/DEPS
diff --git a/content/browser/loader/DEPS b/content/browser/loader/DEPS
index c927c38a4ef4487af32b2fb833795555cc705d19..4eadb25f11536515d5593a37e3bdd16fdc3f5942 100644
--- a/content/browser/loader/DEPS
+++ b/content/browser/loader/DEPS
@@ -20,6 +20,7 @@ specific_include_rules = {
     "+content/browser/loader/resource_message_delegate.h",
     "+content/browser/loader/resource_message_filter.h",
     "+content/browser/loader/resource_request_info_impl.h",
+    "+content/browser/loader/upload_progress_tracker.h",
     "+content/common/content_export.h",
     "+content/public/browser/resource_dispatcher_host_delegate.h",
     "+content/public/common/resource_response.h",
@@ -336,6 +337,10 @@ specific_include_rules = {
     "+content/common/url_loader_factory.mojom.h",
     "+content/public/common/resource_response.h",
   ],
+  "upload_progress_tracker\.(cc|h)": [
+    "-content",
+    "+content/browser/loader/upload_progress_tracker.h",
+  ],
   "url_loader_factory_impl\.(cc|h)": [
     "-content",
     "+content/browser/loader/resource_dispatcher_host_impl.h",