Use a direct include of strings headers in content/renderer and content/shell.

content/shell/shell_javascript_dialog_win.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/shell/shell_javascript_dialog.h"
 
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "content/shell/app/resource.h"
 #include "content/shell/shell.h"
 #include "content/shell/shell_javascript_dialog_manager.h"
 
 namespace content {
 
 class ShellJavaScriptDialog;
 
 INT_PTR CALLBACK ShellJavaScriptDialog::DialogProc(HWND dialog,
                                                    UINT message,
@@ skipping 86 matching lines @@
 ShellJavaScriptDialog::~ShellJavaScriptDialog() {
   Cancel();
 }
 
 void ShellJavaScriptDialog::Cancel() {
   if (dialog_win_)
     DestroyWindow(dialog_win_);
 }
 
 }  // namespace content