Revert of Fixing renderer's access to a file from HTTP POST (after a xsite transfer).

content/common/resource_request_body_impl.h

 // Copyright 2014 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 CONTENT_COMMON_RESOURCE_REQUEST_BODY_IMPL_H_
 #define CONTENT_COMMON_RESOURCE_REQUEST_BODY_IMPL_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 37 matching lines @@
   void swap_elements(std::vector<Element>* elements) {
     elements_.swap(*elements);
   }
 
   // Identifies a particular upload instance, which is used by the cache to
   // formulate a cache key.  This value should be unique across browser
   // sessions.  A value of 0 is used to indicate an unspecified identifier.
   void set_identifier(int64_t id) { identifier_ = id; }
   int64_t identifier() const { return identifier_; }
 
-  // Returns paths referred to by |elements| of type Element::TYPE_FILE.
-  std::vector<base::FilePath> GetReferencedFiles() const;
-
  private:
   ~ResourceRequestBodyImpl() override;
 
   std::vector<Element> elements_;
   int64_t identifier_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceRequestBodyImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_RESOURCE_REQUEST_BODY_IMPL_H_