Fix registerProtocolHandler OS registration on Windows 8

chrome/browser/shell_integration.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/shell_integration.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 79 matching lines @@
     new_cmd_line.AppendSwitchASCII(switches::kApp, url.spec());
   }
   return new_cmd_line;
 }
 
 #if !defined(OS_WIN)
 // static
 bool ShellIntegration::SetAsDefaultBrowserInteractive() {
   return false;
 }
+
+// static
+bool ShellIntegration::SetAsDefaultProtocolClientInteractive(
+    const std::string& protocol) {
+  return false;
+}
 #endif
 
 bool ShellIntegration::DefaultWebClientObserver::IsOwnedByWorker() {
   return false;
 }
 
 bool ShellIntegration::DefaultWebClientObserver::
     IsInteractiveSetDefaultPermitted() {
   return false;
 }
@@ skipping 147 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 // DefaultProtocolClientWorker, private:
 
 ShellIntegration::DefaultWebClientState
 ShellIntegration::DefaultProtocolClientWorker::CheckIsDefault() {
   return ShellIntegration::IsDefaultProtocolClient(protocol_);
 }
 
 bool ShellIntegration::DefaultProtocolClientWorker::SetAsDefault(
     bool interactive_permitted) {
-  return ShellIntegration::SetAsDefaultProtocolClient(protocol_);
+  bool result = false;
+  switch (ShellIntegration::CanSetAsDefaultProtocolClient()) {
+    case ShellIntegration::SET_DEFAULT_UNATTENDED:
+      result = ShellIntegration::SetAsDefaultProtocolClient(protocol_);
+      break;
+    case ShellIntegration::SET_DEFAULT_INTERACTIVE:
+      if (interactive_permitted) {
+        result = ShellIntegration::SetAsDefaultProtocolClientInteractive(
+            protocol_);
+      }
+      break;
+    default:
+      NOTREACHED();
+  }
+
+  return result;
 }