Fix registerProtocolHandler OS registration on Windows 8

chrome/browser/custom_handlers/protocol_handler_registry.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 "chrome/browser/custom_handlers/protocol_handler_registry.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 225 matching lines @@
   if (worker_) {
     if (ShouldRemoveHandlersNotInOS() &&
         (state == ShellIntegration::STATE_NOT_DEFAULT)) {
       registry_->ClearDefault(worker_->protocol());
     }
   } else {
     NOTREACHED();
   }
 }
 
+bool ProtocolHandlerRegistry::DefaultClientObserver::
+    IsInteractiveSetDefaultPermitted() {
+  return true;
+}
+
 void ProtocolHandlerRegistry::DefaultClientObserver::SetWorker(
     ShellIntegration::DefaultProtocolClientWorker* worker) {
   worker_ = worker;
 }
 
 bool ProtocolHandlerRegistry::DefaultClientObserver::IsOwnedByWorker() {
   return true;
 }
 
 // Delegate --------------------------------------------------------------------
@@ skipping 613 matching lines @@
 }
 
 net::URLRequestJobFactory::Interceptor*
     ProtocolHandlerRegistry::CreateURLInterceptor() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // this is always created on the UI thread (in profile_io's
   // InitializeOnUIThread. Any method calls must be done
   // on the IO thread (this is checked).
   return new URLInterceptor(core_);
 }