Plumb network stack information about existence of cached copy

chrome/renderer/security_filter_peer.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/renderer/security_filter_peer.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/stringprintf.h"
 #include "grit/generated_resources.h"
 #include "net/base/net_errors.h"
@@ skipping 75 matching lines @@
 
 void SecurityFilterPeer::OnReceivedData(const char* data,
                                         int data_length,
                                         int encoded_data_length) {
   NOTREACHED();
 }
 
 void SecurityFilterPeer::OnCompletedRequest(
     int error_code,
     bool was_ignored_by_handler,
+    bool stale_copy_in_cache,
     const std::string& security_info,
     const base::TimeTicks& completion_time) {
   NOTREACHED();
 }
 
 // static
 void ProcessResponseInfo(
     const webkit_glue::ResourceResponseInfo& info_in,
     webkit_glue::ResourceResponseInfo* info_out,
     const std::string& mime_type) {
@@ skipping 41 matching lines @@
 }
 
 void BufferedPeer::OnReceivedData(const char* data,
                                   int data_length,
                                   int encoded_data_length) {
   data_.append(data, data_length);
 }
 
 void BufferedPeer::OnCompletedRequest(int error_code,
                                       bool was_ignored_by_handler,
+                                      bool stale_copy_in_cache,
                                       const std::string& security_info,
                                       const base::TimeTicks& completion_time) {
   // Make sure we delete ourselves at the end of this call.
   scoped_ptr<BufferedPeer> this_deleter(this);
 
   // Give sub-classes a chance at altering the data.
   if (error_code != net::OK || !DataReady()) {
     // Pretend we failed to load the resource.
     original_peer_->OnReceivedResponse(response_info_);
-    original_peer_->OnCompletedRequest(net::ERR_ABORTED, false, security_info,
-                                       completion_time);
+    original_peer_->OnCompletedRequest(net::ERR_ABORTED, false,
+                                       stale_copy_in_cache,
+                                       security_info, completion_time);
     return;
   }
 
   original_peer_->OnReceivedResponse(response_info_);
   if (!data_.empty())
     original_peer_->OnReceivedData(data_.data(),
                                    static_cast<int>(data_.size()),
                                    -1);
   original_peer_->OnCompletedRequest(error_code, was_ignored_by_handler,
-                                     security_info, completion_time);
+                                     stale_copy_in_cache, security_info,
+                                     completion_time);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ReplaceContentPeer
 
 ReplaceContentPeer::ReplaceContentPeer(
     webkit_glue::ResourceLoaderBridge* resource_loader_bridge,
     webkit_glue::ResourceLoaderBridge::Peer* peer,
     const std::string& mime_type,
     const std::string& data)
@@ skipping 12 matching lines @@
 
 void ReplaceContentPeer::OnReceivedData(const char* data,
                                         int data_length,
                                         int encoded_data_length) {
   // Ignore this, we'll serve some alternate content in OnCompletedRequest.
 }
 
 void ReplaceContentPeer::OnCompletedRequest(
     int error_code,
     bool was_ignored_by_handler,
+    bool stale_copy_in_cache,
     const std::string& security_info,
     const base::TimeTicks& completion_time) {
   webkit_glue::ResourceResponseInfo info;
   ProcessResponseInfo(info, &info, mime_type_);
   info.security_info = security_info;
   info.content_length = static_cast<int>(data_.size());
   original_peer_->OnReceivedResponse(info);
   if (!data_.empty())
     original_peer_->OnReceivedData(data_.data(),
                                    static_cast<int>(data_.size()),
                                    -1);
   original_peer_->OnCompletedRequest(net::OK,
                                      false,
+                                     stale_copy_in_cache,
                                      security_info,
                                      completion_time);
 
   // The request processing is complete, we must delete ourselves.
   delete this;
 }