Cleanup: IWYU for base/gtest_prod_util.h.

chrome/browser/extensions/webstore_startup_installer.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_WEBSTORE_STARTUP_INSTALLER_H_
 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_STARTUP_INSTALLER_H_
 
+#include "base/gtest_prod_util.h"
 #include "chrome/browser/extensions/webstore_install_with_prompt.h"
 
 namespace extensions {
 
 // Manages inline installs requested to be performed at startup, e.g. via a
 // command line option: downloads and parses metadata from the webstore,
 // optionally shows an install UI, starts the download once the user
 // confirms.
 //
 // Clients will be notified of success or failure via the |callback| argument
@@ skipping 17 matching lines @@
 
  private:
   bool show_prompt_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebstoreStartupInstaller);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_STARTUP_INSTALLER_H_