Use a direct include of strings headers in content/browser/, part 1.

content/browser/download/download_net_log_parameters.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 "content/browser/download/download_net_log_parameters.h"
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
-#include "base/string_number_conversions.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "content/public/browser/download_interrupt_reasons.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_errors.h"
 
 namespace content {
 
 namespace {
 
 static const char* download_type_names[] = {
@@ skipping 178 matching lines @@
   dict->SetString("operation", operation);
   if (os_error != 0)
     dict->SetInteger("os_error", os_error);
   dict->SetString("interrupt_reason", InterruptReasonDebugString(reason));
 
   return dict;
 }
 
 
 }  // namespace content