Remove unneeded uses of logging.h in header files.

net/disk_cache/mem_backend_impl.cc

 // Copyright (c) 2006-2008 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/disk_cache/mem_backend_impl.h"
 
+#include "base/logging.h"
 #include "base/sys_info.h"
 #include "net/disk_cache/cache_util.h"
 #include "net/disk_cache/mem_entry_impl.h"
 
 using base::Time;
 
 namespace {
 
 const int kDefaultCacheSize = 10 * 1024 * 1024;
 const int kCleanUpMargin = 1024 * 1024;
@@ skipping 228 matching lines @@
 
 void MemBackendImpl::UpdateRank(MemEntryImpl* node) {
   rankings_.UpdateRank(node);
 }
 
 int MemBackendImpl::MaxFileSize() const {
   return max_size_ / 8;
 }
 
 }  // namespace disk_cache