Don't lower priority for scripts inserted by doc.write

third_party/WebKit/Source/core/html/parser/PreloadRequest.cpp

 // Copyright 2015 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 "core/html/parser/PreloadRequest.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/DocumentWriteIntervention.h"
 #include "core/loader/DocumentLoader.h"
 #include "platform/CrossOriginAttributeValue.h"
@@ skipping 63 matching lines @@
 
   if (request_type_ == kRequestTypeLinkRelPreload)
     params.SetLinkPreload(true);
 
   if (resource_type_ == Resource::kScript ||
       resource_type_ == Resource::kCSSStyleSheet ||
       resource_type_ == Resource::kImportResource) {
     params.SetCharset(charset_.IsEmpty() ? document->characterSet().GetString()
                                          : charset_);
   }
-  params.SetSpeculativePreload(true, discovery_time_);
+  FetchParameters::SpeculativePreloadType speculative_preload_type =
+      FetchParameters::SpeculativePreloadType::kInDocument;
+  if (from_insertion_scanner_) {
+    speculative_preload_type =
+        FetchParameters::SpeculativePreloadType::kInserted;
+  }
+  params.SetSpeculativePreloadType(speculative_preload_type, discovery_time_);
 
   return document->Loader()->StartPreload(resource_type_, params);
 }
 
 }  // namespace blink