replace OVERRIDE and FINAL with override and final in net/

net/disk_cache/memory/mem_backend_impl.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 "net/disk_cache/memory/mem_backend_impl.h"
 
 #include "base/logging.h"
 #include "base/sys_info.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/cache_util.h"
@@ skipping 170 matching lines @@
   return net::ERR_FAILED;
 }
 
 class MemBackendImpl::MemIterator : public Backend::Iterator {
  public:
   explicit MemIterator(base::WeakPtr<MemBackendImpl> backend)
       : backend_(backend), current_(NULL) {
   }
 
   virtual int OpenNextEntry(Entry** next_entry,
-                            const CompletionCallback& callback) OVERRIDE {
+                            const CompletionCallback& callback) override {
     if (!backend_)
       return net::ERR_FAILED;
 
     MemEntryImpl* node = backend_->rankings_.GetNext(current_);
     // We should never return a child entry so iterate until we hit a parent
     // entry.
     while (node && node->type() != MemEntryImpl::kParentEntry)
       node = backend_->rankings_.GetNext(node);
     *next_entry = node;
     current_ = node;
@@ skipping 134 matching lines @@
   if (current_size_ > max_size_)
     TrimCache(false);
 }
 
 void MemBackendImpl::SubstractStorageSize(int32 bytes) {
   current_size_ -= bytes;
   DCHECK_GE(current_size_, 0);
 }
 
 }  // namespace disk_cache