PlzNavigate: store POST data in the FrameNavigationEntry

content/common/page_state_serialization.h

 // Copyright 2013 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_PAGE_STATE_SERIALIZATION_H_
 #define CONTENT_COMMON_PAGE_STATE_SERIALIZATION_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/strings/nullable_string16.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
+#include "content/common/resource_request_body.h"
 #include "third_party/WebKit/public/platform/WebHTTPBody.h"
 #include "third_party/WebKit/public/platform/WebHistoryScrollRestorationType.h"
 #include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/point_f.h"
 #include "url/gurl.h"
 
 namespace content {
 
 struct CONTENT_EXPORT ExplodedHttpBodyElement {
@@ skipping 12 matching lines @@
 };
 
 struct CONTENT_EXPORT ExplodedHttpBody {
   base::NullableString16 http_content_type;
   std::vector<ExplodedHttpBodyElement> elements;
   int64_t identifier;
   bool contains_passwords;
   bool is_null;
 
   ExplodedHttpBody();
+  ExplodedHttpBody(const ExplodedHttpBody& other);
   ~ExplodedHttpBody();
 };
 
 struct CONTENT_EXPORT ExplodedFrameState {
   base::NullableString16 url_string;
   base::NullableString16 referrer;
   base::NullableString16 target;
   base::NullableString16 state_object;
   std::vector<base::NullableString16> document_state;
   blink::WebHistoryScrollRestorationType scroll_restoration_type;
@@ skipping 24 matching lines @@
 
   ExplodedPageState();
   ~ExplodedPageState();
 };
 
 CONTENT_EXPORT bool DecodePageState(const std::string& encoded,
                                     ExplodedPageState* exploded);
 CONTENT_EXPORT bool EncodePageState(const ExplodedPageState& exploded,
                                     std::string* encoded);
 
+// If |exploded| is not null, initializes |http_body| with the data from
+// |exploded|. Returns false otherwise.
+bool GeneratePostData(const ExplodedHttpBody exploded,
+                      ResourceRequestBody* http_body);
+
 #if defined(OS_ANDROID)
 CONTENT_EXPORT bool DecodePageStateWithDeviceScaleFactorForTesting(
     const std::string& encoded,
     float device_scale_factor,
     ExplodedPageState* exploded);
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_PAGE_STATE_SERIALIZATION_H_