Rewrite references to "wtf/" to "platform/wtf/" in core/loader.

third_party/WebKit/Source/core/loader/ThreadableLoadingContext.h

 // Copyright 2017 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.
 
 #ifndef ThreadableLoadingContext_h
 #define ThreadableLoadingContext_h
 
 #include "core/CoreExport.h"
 #include "core/dom/TaskRunnerHelper.h"
 #include "core/frame/UseCounter.h"
 #include "platform/heap/GarbageCollected.h"
 #include "platform/weborigin/KURL.h"
-#include "wtf/Forward.h"
-#include "wtf/Noncopyable.h"
+#include "platform/wtf/Forward.h"
+#include "platform/wtf/Noncopyable.h"
 
 namespace blink {
 
 class Document;
 class ResourceFetcher;
 class SecurityOrigin;
 class WebTaskRunner;
 
 // An abstract interface for top-level loading context.
 // This should be accessed only from the thread where the loading
@@ skipping 20 matching lines @@
 
   // TODO(kinuko): Try getting rid of dependency to Document.
   virtual Document* GetLoadingDocument() { return nullptr; }
 
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 };
 
 }  // namespace blink
 
 #endif  // ThreadableLoadingContext_h