PlzNavigate: store POST data in the FrameNavigationEntry

content/common/resource_request_body.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_H_
 #define CONTENT_COMMON_RESOURCE_REQUEST_BODY_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/supports_user_data.h"
 #include "content/common/content_export.h"
 #include "storage/common/data_element.h"
 #include "url/gurl.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace content {
 
+struct ExplodedHttpBodyElement;
+
 // A struct used to represent upload data. The data field is populated by
 // WebURLLoader from the data given as WebHTTPBody.
 class CONTENT_EXPORT ResourceRequestBody
     : public base::RefCountedThreadSafe<ResourceRequestBody>,
       public base::SupportsUserData {
  public:
   typedef storage::DataElement Element;
 
   ResourceRequestBody();
 
+  void AppendExplodedHTTPBodyElement(const ExplodedHttpBodyElement& element);
+
   void AppendBytes(const char* bytes, int bytes_len);
   void AppendFileRange(const base::FilePath& file_path,
                        uint64_t offset,
                        uint64_t length,
                        const base::Time& expected_modification_time);
   void AppendBlob(const std::string& uuid);
   void AppendFileSystemFileRange(const GURL& url,
                                  uint64_t offset,
                                  uint64_t length,
                                  const base::Time& expected_modification_time);
 
   const std::vector<Element>* elements() const { return &elements_; }
   std::vector<Element>* elements_mutable() { return &elements_; }
   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 a copy of this ResourceRequestBody.
+  scoped_refptr<ResourceRequestBody> MakeCopy();
+
  private:
   friend class base::RefCountedThreadSafe<ResourceRequestBody>;
   ~ResourceRequestBody() override;
 
   std::vector<Element> elements_;
   int64_t identifier_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceRequestBody);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_RESOURCE_REQUEST_BODY_H_