Remove FetchRequest::mutableResourceRequest() where removing is trivial

third_party/WebKit/Source/core/dom/ScriptLoader.cpp

Index: third_party/WebKit/Source/core/dom/ScriptLoader.cpp
diff --git a/third_party/WebKit/Source/core/dom/ScriptLoader.cpp b/third_party/WebKit/Source/core/dom/ScriptLoader.cpp
index 0a9402b302f3e530645f10d5a6397add4059de80..54c374997963907b76b8fd1d7bd5b91d737fa1ba 100644
--- a/third_party/WebKit/Source/core/dom/ScriptLoader.cpp
+++ b/third_party/WebKit/Source/core/dom/ScriptLoader.cpp
@@ -523,9 +523,17 @@ bool ScriptLoader::fetchScript(const String& sourceUrl,
   // 21. "If the element has a src content attribute, run these substeps:"
   if (!stripLeadingAndTrailingHTMLSpaces(sourceUrl).isEmpty()) {
     // 21.4. "Parse src relative to the element's node document."
-    FetchRequest request(
-        ResourceRequest(elementDocument->completeURL(sourceUrl)),
-        m_element->localName());
+    ResourceRequest resourceRequest(elementDocument->completeURL(sourceUrl));
+
+    // [Intervention]
+    if (m_documentWriteIntervention ==
+        DocumentWriteIntervention::FetchDocWrittenScriptDeferIdle) {
+      resourceRequest.setHTTPHeaderField(
+          "Intervention",
+          "<https://www.chromestatus.com/feature/5718547946799104>");
+    }
+
+    FetchRequest request(resourceRequest, m_element->localName());
 
     // 15. "Let CORS setting be the current state of the element's
     //      crossorigin content attribute."
@@ -570,14 +578,6 @@ bool ScriptLoader::fetchScript(const String& sourceUrl,
       request.setIntegrityMetadata(metadataSet);
     }
 
-    // [Intervention]
-    if (m_documentWriteIntervention ==
-        DocumentWriteIntervention::FetchDocWrittenScriptDeferIdle) {
-      request.mutableResourceRequest().setHTTPHeaderField(
-          "Intervention",
-          "<https://www.chromestatus.com/feature/5718547946799104>");
-    }
-
     // 21.6. "Switch on the script's type:"
 
     // - "classic":