Make WebURLLoader capable of retaining received buffers.

chrome/renderer/security_filter_peer.h

 // Copyright (c) 2011 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 CHROME_RENDERER_SECURITY_FILTER_PEER_H_
 #define CHROME_RENDERER_SECURITY_FILTER_PEER_H_
 
+#include <string>
+
 #include "content/public/child/request_peer.h"
 #include "content/public/common/resource_response_info.h"
 #include "content/public/common/resource_type.h"
 
 // The SecurityFilterPeer is a proxy to a
 // content::RequestPeer instance.  It is used to pre-process
 // unsafe resources (such as mixed-content resource).
 // Call the factory method CreateSecurityFilterPeer() to obtain an instance of
 // SecurityFilterPeer based on the original Peer.
 // NOTE: subclasses should ensure they delete themselves at the end of the
@@ skipping 10 matching lines @@
   static SecurityFilterPeer* CreateSecurityFilterPeerForFrame(
       content::RequestPeer* peer,
       int os_error);
 
   // content::RequestPeer methods.
   void OnUploadProgress(uint64 position, uint64 size) override;
   bool OnReceivedRedirect(const net::RedirectInfo& redirect_info,
                           const content::ResourceResponseInfo& info) override;
   void OnReceivedResponse(const content::ResourceResponseInfo& info) override;
   void OnDownloadedData(int len, int encoded_data_length) override {}
-  void OnReceivedData(const char* data,
-                      int data_length,
-                      int encoded_data_length) override;
+  void OnReceivedData(scoped_ptr<ReceivedData> data) override;
   void OnCompletedRequest(int error_code,
                           bool was_ignored_by_handler,
                           bool stale_copy_in_cache,
                           const std::string& security_info,
                           const base::TimeTicks& completion_time,
                           int64 total_transfer_size) override;
 
  protected:
   explicit SecurityFilterPeer(content::RequestPeer* peer);
 
   content::RequestPeer* original_peer_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SecurityFilterPeer);
 };
 
 // The BufferedPeer reads all the data of the request into an internal buffer.
 // Subclasses should implement DataReady() to process the data as necessary.
 class BufferedPeer : public SecurityFilterPeer {
  public:
   BufferedPeer(content::RequestPeer* peer, const std::string& mime_type);
   ~BufferedPeer() override;
 
   // content::RequestPeer Implementation.
   void OnReceivedResponse(const content::ResourceResponseInfo& info) override;
-  void OnReceivedData(const char* data,
-                      int data_length,
-                      int encoded_data_length) override;
+  void OnReceivedData(scoped_ptr<ReceivedData> data) override;
   void OnCompletedRequest(int error_code,
                           bool was_ignored_by_handler,
                           bool stale_copy_in_cache,
                           const std::string& security_info,
                           const base::TimeTicks& completion_time,
                           int64 total_transfer_size) override;
 
  protected:
   // Invoked when the entire request has been processed before the data is sent
   // to the original peer, giving an opportunity to subclasses to process the
@@ skipping 18 matching lines @@
 // ignored.
 class ReplaceContentPeer : public SecurityFilterPeer {
  public:
   ReplaceContentPeer(content::RequestPeer* peer,
                      const std::string& mime_type,
                      const std::string& data);
   ~ReplaceContentPeer() override;
 
   // content::RequestPeer Implementation.
   void OnReceivedResponse(const content::ResourceResponseInfo& info) override;
-  void OnReceivedData(const char* data,
-                      int data_length,
-                      int encoded_data_length) override;
+  void OnReceivedData(scoped_ptr<ReceivedData> data) override;
   void OnCompletedRequest(int error_code,
                           bool was_ignored_by_handler,
                           bool stale_copy_in_cache,
                           const std::string& security_info,
                           const base::TimeTicks& completion_time,
                           int64 total_transfer_size) override;
 
  private:
   content::ResourceResponseInfo response_info_;
   std::string mime_type_;
   std::string data_;
 
   DISALLOW_COPY_AND_ASSIGN(ReplaceContentPeer);
 };
 
 #endif  // CHROME_RENDERER_SECURITY_FILTER_PEER_H_