Remove mutableResourceRequest() by FetchRequest::setRequestContext()

third_party/WebKit/Source/core/loader/resource/ImageResource.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 133 matching lines @@
 
  private:
   // Weak, unowned pointer. Must outlive |this|.
   const FetchRequest* m_fetchRequest;
 };
 
 ImageResource* ImageResource::fetch(FetchRequest& request,
                                     ResourceFetcher* fetcher) {
   if (request.resourceRequest().requestContext() ==
       WebURLRequest::RequestContextUnspecified) {
-    request.mutableResourceRequest().setRequestContext(
-        WebURLRequest::RequestContextImage);
+    request.setRequestContext(WebURLRequest::RequestContextImage);
   }
   if (fetcher->context().pageDismissalEventBeingDispatched()) {
     KURL requestURL = request.resourceRequest().url();
     if (requestURL.isValid()) {
       ResourceRequestBlockedReason blockReason = fetcher->context().canRequest(
           Resource::Image, request.resourceRequest(), requestURL,
           request.options(),
           /* Don't send security violation reports for speculative preloads */
           request.isSpeculativePreload()
               ? SecurityViolationReportingPolicy::SuppressReporting
@@ skipping 427 matching lines @@
     //    reloading in Step 3 due to notifyObservers()'s
     //    schedulingReloadOrShouldReloadBrokenPlaceholder() check.
     // 3. reloadIfLoFiOrPlaceholderImage() is called via ResourceFetcher
     //    (a) via didFinishLoading() called in decodeError(), or
     //    (b) after returning ImageResource::updateImage().
     decodeError(allDataReceived);
   }
 }
 
 }  // namespace blink