Inform disk cache of WebKit memory cache hits.

net/http/http_cache_transaction.cc

 // 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.
 
 #include "net/http/http_cache_transaction.h"
 
 #include "build/build_config.h"
 
 #if defined(OS_POSIX)
 #include <unistd.h>
@@ skipping 164 matching lines @@
     return ERR_UNEXPECTED;
 
   // We don't need to track this operation for anything.
   // It could be possible to check if there is something already written and
   // avoid writing again (it should be the same, right?), but let's allow the
   // caller to "update" the contents with something new.
   return entry_->disk_entry->WriteData(kMetadataIndex, 0, buf, buf_len,
                                        callback, true);
 }
 
+void HttpCache::Transaction::UpdateRankForExternalCacheHit() {
+  DCHECK(entry_);
+  entry_->disk_entry->UpdateRankForExternalCacheHit();
+}
+
 bool HttpCache::Transaction::AddTruncatedFlag() {
   DCHECK(mode_ & WRITE);
 
   // Don't set the flag for sparse entries.
   if (partial_.get() && !truncated_)
     return true;
 
   if (!CanResume(true))
     return false;
 
@@ skipping 1850 matching lines @@
     return false;
 
   return true;
 }
 
 void HttpCache::Transaction::OnIOComplete(int result) {
   DoLoop(result);
 }
 
 }  // namespace net