Fix registerProtocolHandler OS registration on Windows 8

chrome/installer/util/shell_util.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.
 //
 // This file declares methods that are useful for integrating Chrome in
 // Windows shell. These methods are all static and currently part of
 // ShellUtil class.
 
 #ifndef CHROME_INSTALLER_UTIL_SHELL_UTIL_H_
 #define CHROME_INSTALLER_UTIL_SHELL_UTIL_H_
@@ skipping 295 matching lines @@
   static bool ShowMakeChromeDefaultSystemUI(BrowserDistribution* dist,
                                             const string16& chrome_exe);
 
   // Make Chrome the default application for a protocol.
   // chrome_exe: The chrome.exe path to register as default browser.
   // protocol: The protocol to register as the default handler for.
   static bool MakeChromeDefaultProtocolClient(BrowserDistribution* dist,
                                               const string16& chrome_exe,
                                               const string16& protocol);
 
+  // Shows to the user a system dialog where Chrome can be set as the
+  // default handler for the given protocol. This is intended for Windows 8
+  // and above only. This is a blocking call.
+  //
+  // |dist| gives the type of browser distribution currently in use.
+  // |chrome_exe| The chrome.exe path to register as default browser.
+  // |protocol| is the protocol being registered.
+  static bool ShowMakeChromeDefaultProtocolClientSystemUI(
+      BrowserDistribution* dist,
+      const string16& chrome_exe,
+      const string16& protocol);
+
   // Registers Chrome as a potential default browser and handler for filetypes
   // and protocols.
   // If Chrome is already registered, this method is a no-op.
   // This method requires write access to HKLM (prior to Win8) so is just a
   // best effort deal.
   // If write to HKLM is required, but fails, and:
   // - |elevate_if_not_admin| is true (and OS is Vista or above):
   //   tries to launch setup.exe with admin priviledges (by prompting the user
   //   with a UAC) to do these tasks.
   // - |elevate_if_not_admin| is false (or OS is XP):
@@ skipping 127 matching lines @@
   // required by the base32 standard for inputs that aren't a multiple of 5
   // bytes.
   static string16 ByteArrayToBase32(const uint8* bytes, size_t size);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ShellUtil);
 };
 
 
 #endif  // CHROME_INSTALLER_UTIL_SHELL_UTIL_H_