Disk cache: A few minor fixes to make coverity happy.

net/disk_cache/entry_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/entry_impl.h"
 
 #include "base/histogram.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "net/base/io_buffer.h"
@@ skipping 561 matching lines @@
   backend_->DecrementIoCount();
 }
 
 void EntryImpl::SetTimes(base::Time last_used, base::Time last_modified) {
   node_.Data()->last_used = last_used.ToInternalValue();
   node_.Data()->last_modified = last_modified.ToInternalValue();
   node_.set_modified();
 }
 
 bool EntryImpl::CreateDataBlock(int index, int size) {
-  Addr address(entry_.Data()->data_addr[index]);
   DCHECK(index >= 0 && index < NUM_STREAMS);
 
+  Addr address(entry_.Data()->data_addr[index]);
   if (!CreateBlock(size, &address))
     return false;
 
   entry_.Data()->data_addr[index] = address.value();
   entry_.Store();
   return true;
 }
 
 bool EntryImpl::CreateBlock(int size, Addr* address) {
   DCHECK(!address->is_initialized());
@@ skipping 253 matching lines @@
   Trace("%s 0x%p 0x%x 0x%x", msg, reinterpret_cast<void*>(this),
         entry_.address().value(), node_.address().value());
 
   Trace("  data: 0x%x 0x%x 0x%x", entry_.Data()->data_addr[0],
         entry_.Data()->data_addr[1], entry_.Data()->long_key);
 
   Trace("  doomed: %d 0x%p 0x%x", doomed_, pointer, dirty);
 }
 
 }  // namespace disk_cache