Refactor the forPreload flag to mean speculative preload.

third_party/WebKit/Source/platform/loader/fetch/FetchContext.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 106 matching lines @@
                                         double finishTime,
                                         int64_t encodedDataLength);
   virtual void dispatchDidFail(unsigned long identifier,
                                const ResourceError&,
                                int64_t encodedDataLength,
                                bool isInternalRequest);
 
   virtual bool shouldLoadNewResource(Resource::Type) const { return false; }
   // Called when a resource load is first requested, which may not be when the
   // load actually begins.
-  // TODO(toyoshim): Consider to use enum. See https://crbug.com/675883.
+  enum class V8ActivityLoggingPolicy { SuppressLogging, Log };
   virtual void willStartLoadingResource(unsigned long identifier,
                                         ResourceRequest&,
                                         Resource::Type,
                                         const AtomicString& fetchInitiatorName,
-                                        bool forPreload);
+                                        V8ActivityLoggingPolicy);
   virtual void didLoadResource(Resource*);
 
   virtual void addResourceTiming(const ResourceTimingInfo&);
   virtual bool allowImage(bool, const KURL&) const { return false; }
-  // TODO(toyoshim): Consider to use enum. See https://crbug.com/675883.
+  enum class SecurityViolationReportingPolicy { SuppressReporting, Report };
   virtual ResourceRequestBlockedReason canRequest(
       Resource::Type,
       const ResourceRequest&,
       const KURL&,
       const ResourceLoaderOptions&,
-      bool forPreload,
+      SecurityViolationReportingPolicy,
       FetchRequest::OriginRestriction) const {
     return ResourceRequestBlockedReason::Other;
   }
   virtual ResourceRequestBlockedReason allowResponse(
       Resource::Type,
       const ResourceRequest&,
       const KURL&,
       const ResourceLoaderOptions&) const {
     return ResourceRequestBlockedReason::Other;
   }
@@ skipping 33 matching lines @@
 
   virtual RefPtr<WebTaskRunner> loadingTaskRunner() const { return nullptr; }
 
  protected:
   FetchContext() {}
 };
 
 }  // namespace blink
 
 #endif