Remove code path that passes a file handle to the renderer...

net/disk_cache/histogram_macros.h

 // Copyright (c) 2009 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.
 
 // This file contains macros to simplify histogram reporting from the disk
 // cache. The main issue is that we want to have separate histograms for each
 // type of cache (regular vs. media, etc), without adding the complexity of
 // keeping track of a potentially large number of histogram objects that have to
 // survive the backend object that created them.
 
@@ skipping 38 matching lines @@
 //
 #define CACHE_UMA(type, name, experiment, sample) {\
     const std::string my_name = BACKEND_OBJ->HistogramName(name, experiment);\
     switch (BACKEND_OBJ->cache_type()) {\
       case net::DISK_CACHE:\
         UMA_HISTOGRAM_##type(my_name.data(), sample);\
         break;\
       case net::MEDIA_CACHE:\
         UMA_HISTOGRAM_##type(my_name.data(), sample);\
         break;\
-      case net::TEMP_MEDIA_CACHE:\
-        UMA_HISTOGRAM_##type(my_name.data(), sample);\
-        break;\
       default:\
         NOTREACHED();\
         break;\
     }\
   }
 
 #endif  // NET_DISK_CACHE_HISTOGRAM_MACROS_H_