PlzNavigate: store POST data in the FrameNavigationEntry

content/browser/frame_host/frame_navigation_entry.h

 // Copyright 2015 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_BROWSER_FRAME_HOST_FRAME_NAVIGATION_ENTRY_H_
 #define CONTENT_BROWSER_FRAME_HOST_FRAME_NAVIGATION_ENTRY_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/browser/site_instance_impl.h"
+#include "content/common/resource_request_body.h"
 #include "content/public/common/page_state.h"
 #include "content/public/common/referrer.h"
 
 namespace content {
 
 // Represents a session history item for a particular frame.  It is matched with
 // corresponding FrameTreeNodes using unique name (or by the root position).
 //
 // This class is refcounted and can be shared across multiple NavigationEntries.
 // For now, it is owned by a single NavigationEntry and only tracks the main
@@ skipping 77 matching lines @@
 
   // The HTTP method used to navigate.
   const std::string& method() const { return method_; }
   void set_method(const std::string& method) { method_ = method; }
 
   // The id of the post corresponding to this navigation or -1 if the
   // navigation was not a POST.
   int64_t post_id() const { return post_id_; }
   void set_post_id(int64_t post_id) { post_id_ = post_id; }
 
+  // The data sent during a POST navigation. Returns nullptr if the navigation
+  // is not a POST.
+  scoped_refptr<ResourceRequestBody> GetPostData() const;
+
  private:
   friend class base::RefCounted<FrameNavigationEntry>;
   virtual ~FrameNavigationEntry();
 
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
   // Add all new fields to |UpdateEntry|.
   // TODO(creis): These fields have implications for session restore.  This is
   // currently managed by NavigationEntry, but the logic will move here.
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
 
   // See the accessors above for descriptions.
   std::string frame_unique_name_;
   int64_t item_sequence_number_;
   int64_t document_sequence_number_;
   scoped_refptr<SiteInstanceImpl> site_instance_;
   GURL url_;
   Referrer referrer_;
   // TODO(creis): Change this to FrameState.
   PageState page_state_;
   std::string method_;
   int64_t post_id_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameNavigationEntry);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_FRAME_NAVIGATION_ENTRY_H_